目录
- 题目要求
- 具体代码
题目要求
采用多道程序思想设计一个程序，模拟页存储管理地址变换的过程，可采用FIFO、LRU、LFU、OPT四页面置换算法。基本要求如下：
- 需要建立访问页表线程、访问快表线程、缺页中断处理线程、访问内存线程等，协同这些线程模拟完成地址变换的过程。
- 输入一个逻辑页面访问序列和随机产生逻辑页面访问序列，分别由四个算法完成页面置换；
- 能够设定驻留内存页面的个数、内存的存取时间、缺页中断的时间、快表的时间，并提供合理省缺值，可以暂停和继续系统的执行；
- 能够设定页号序列中逻辑页面个数和范围；
- 能够设定有快表和没有快表的运行模式；
- 提供良好图形界面，同时能够展示四个算法运行的结果；
- 给出每种页面置换算法每个页面的存取时间；
- 能够将每次的实验输入和实验结果存储起来，随时可查询；
- 完成多次不同设置的实验，总结实验数据，看看能得出什么结论。
运行界面
执行界面
保存界面
历史界面
具体代码
四种页面置换算法具体实现
config
package com.lr.algurithm;
public class config {
public static int page_low =;
public static int page_high =;
public static int page_list_low =;
public static int page_list_high =;
public static int run_time =;
public static int quick_table_num =;//快表大小
public static int memory_num =;//内存块数
public static double memory_access =;//内存存取时间
public static double quick_table_access =;//快表存取时间
public static double miss_page_interrupt =;//缺页中断处理时间
public static int taskSize =;//页面序列数量
public static int[] task = new int[taskSize];//页面序列存放
public static boolean is_check=false;//快表启用判断
}
FIFO算法
FIFO
package com.lr.algurithm;
import com.lr.frame.Page;
import sun.awt.Mutex;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.List;
public class FIFO extends Thread{
private int fifo_i =;
public int fifo_lackpage=;//缺页数
public double fifo_ave_time=;//平均时间
public double fifo_total_time=;//总时间
public List<Integer> fifo_memory_page = new ArrayList<>();//内存现有页数存放
public List<Integer> fifo_quick_table_page = new ArrayList<>();//快表现有页数存放
public Mutex pause = new Mutex();
public String snumber = new String();
public String interruption = new String();
public String totalTime = new String();
public String avrTime = new String();
public String missPage = new String();
public double start(int a, double per_time) {
if (!config.is_check) { //无快表模式
if (!fifo_memory_page.contains(a)) { //不在内存，产生缺页中断
fifo_lackpage ++ ;
if (fifo_memory_page.size() < config.memory_num)
fifo_memory_page.add(a);
else {
fifo_memory_page.remove();
fifo_memory_page.add(a);
}
fifo_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else {
fifo_total_time += * config.memory_access;
per_time += * config.memory_access;
}
}
else { //快表模式
if (!fifo_quick_table_page.contains(a)) { //不在快表
if (!fifo_memory_page.contains(a)) { //不在内存，产生缺页中断
fifo_lackpage ++ ;
if (fifo_memory_page.size() < config.memory_num) //内存块未满,直接调入
fifo_memory_page.add(a);
else {
fifo_memory_page.remove();
fifo_memory_page.add(a);
}
//快表置换用FIFO
if (fifo_quick_table_page.size() < config.quick_table_num)
fifo_quick_table_page.add(a);
else {
fifo_quick_table_page.remove();
fifo_quick_table_page.add(a);
}
fifo_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else { //在内存
fifo_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //在快表
fifo_total_time += config.quick_table_access + config.memory_access;
per_time += config.quick_table_access + config.memory_access;;
}
}
return per_time;
}
@Override
public void run() {
super.run();
for(fifo_i =; fifo_i < config.taskSize; fifo_i ++ ) {
pause.lock();
double per_time =;
per_time = start(config.task[fifo_i], per_time);
String str="查找";
String s = String.valueOf(config.task[fifo_i]);
snumber += str;
snumber += s;
snumber += ":";
for (int j =; j < config.memory_num; j ++ ) {
if (j < fifo_memory_page.size()) {
String s = String.valueOf(fifo_memory_page.get(j));
snumber += s;
snumber += " ";
}
else {
snumber += " ";
}
}
pause.unlock();
BigDecimal bd = new BigDecimal(per_time);
bd = bd.setScale(, RoundingMode.HALF_UP);
snumber += "耗费时间:" + bd + "\n";
Page.FIFOtest.append(snumber);
snumber = "";
try {
sleep(config.run_time);//睡眠ms
} catch (InterruptedException e) {
e.printStackTrace();
}
}
String s = String.valueOf(config.taskSize);
s = String.valueOf(fifo_lackpage);
interruption = s + "次";
// emit fifo_updata(s+"次","interrupt_label");
double d = (double)fifo_lackpage / config.taskSize *;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(, RoundingMode.HALF_UP);
totalTime = String.valueOf(fifo_total_time);
fifo_ave_time = fifo_total_time / config.taskSize;
BigDecimal bda = new BigDecimal(fifo_ave_time);
bda = bda.setScale(, RoundingMode.HALF_UP);
avrTime = String.valueOf(bda);
missPage = bd + "%";
Page.fifo_interrupt_label.setText(interruption);
Page.fifo_total_time_label.setText(totalTime);
Page.fifo_ave_time_label.setText(avrTime);
Page.fifo_miss_page_label.setText(missPage);
// System.out.println("fifo:"+s);
// System.out.println("fifo:"+fifo_total_time);
// System.out.println("fifo:"+fifo_ave_time);
// System.out.println("fifo:"+d + "%");
}
}
LRU算法
LRU
package com.lr.algurithm;
import com.lr.frame.Page;
import sun.awt.Mutex;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.List;
public class LRU extends Thread {
private int lru_i =;
public int lru_lackpage=;//缺页数
public double lru_ave_time=;//平均时间
public double lru_total_time=;//总时间
public List<Integer> lru_memory_page = new ArrayList<>();//内存现有页数存放
public List<Integer> lru_quick_table_page = new ArrayList<>();//快表现有页数存放
public Mutex pause = new Mutex();
public String snumber = new String();
public String interruption = new String();
public String totalTime = new String();
public String avrTime = new String();
public String missPage = new String();
public double start(int a, double per_time) {
if(!config.is_check) { //无快表模式
if(!lru_memory_page.contains(a)) { //不在内存，产生缺页中断
lru_lackpage ++ ;
if(lru_memory_page.size() < config.memory_num) {
lru_memory_page.add(a);
} else {
lru_memory_page.remove();
lru_memory_page.add(a);
}
lru_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
}
else { //在内存中则找出这个元素并删除，在末尾添加这个元素，保证最近访问的置于末尾
// if (a < lru_memory_page.size())
int temp =;
for (int i =; i < lru_memory_page.size(); ++ i) {
if (a == lru_memory_page.get(i))
temp = i;
}
lru_memory_page.remove(temp);
// System.out.println(a);
lru_memory_page.add(a);
lru_total_time += * config.memory_access;
per_time += * config.memory_access;
}
}
else { //快表模式
if(!lru_quick_table_page.contains(a)) { //不在快表
if(!lru_memory_page.contains(a)) { //不在内存，产生缺页中断
lru_lackpage ++ ;
if(lru_memory_page.size() < config.memory_num) { //内存块未满,直接调入
lru_memory_page.add(a);
} else {
lru_memory_page.remove();
lru_memory_page.add(a);
}
//快表置换用FIFO
if(lru_quick_table_page.size() < config.quick_table_num) {
lru_quick_table_page.add(a);
} else {
lru_quick_table_page.remove();
lru_quick_table_page.add(a);
}
lru_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
}
else { //在内存
int temp =;
for (int i =; i < lru_memory_page.size(); ++ i) {
if (a == lru_memory_page.get(i))
temp = i;
}
lru_memory_page.remove(temp);
lru_memory_page.add(a);
lru_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //在快表
int temp =;
for (int i =; i < lru_memory_page.size(); ++ i) {
if (a == lru_memory_page.get(i))
temp = i;
}
lru_memory_page.remove(temp);
lru_memory_page.add(a);
lru_total_time += config.quick_table_access + config.memory_access;
per_time += config.quick_table_access + config.memory_access;
}
}
return per_time;
}
@Override
public void run() {
for (lru_i =; lru_i < config.taskSize; lru_i ++ ) {
pause.lock();
double per_time =;
per_time = start(config.task[lru_i],per_time);
String str="查找";
String s = String.valueOf(config.task[lru_i]);
snumber += str;
snumber += s;
snumber += ":";
for (int j =; j < config.memory_num; j ++ ) {
if (j < lru_memory_page.size()) {
String s = String.valueOf(lru_memory_page.get(j));
snumber+=s;
snumber+=" ";
} else {
snumber+=" ";
}
}
pause.unlock();
BigDecimal bd = new BigDecimal(per_time);
bd = bd.setScale(, RoundingMode.HALF_UP);
snumber += "耗费时间:" + bd.toString() + "\n";
Page.LRUtest.append(snumber);
snumber = "";
try {
sleep(config.run_time);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
String s = String.valueOf(config.taskSize);
s = String.valueOf(lru_lackpage);
interruption = s + "次";
double d = (double)lru_lackpage / config.taskSize *;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(, RoundingMode.HALF_UP);
lru_ave_time = (double)lru_total_time / config.taskSize;
totalTime = String.valueOf(lru_total_time);
BigDecimal bda = new BigDecimal(lru_ave_time);
bda = bda.setScale(, RoundingMode.HALF_UP);
avrTime = String.valueOf(bda);
missPage = bd + "%";
Page.lru_interrupt_label.setText(interruption);
Page.lru_total_time_label.setText(totalTime);
Page.lru_ave_time_label.setText(avrTime);
Page.lru_miss_page_label.setText(missPage);
// System.out.println("lru"+s);
// System.out.println("lru"+lru_total_time);
// System.out.println("lru"+lru_ave_time);
// System.out.println("lru"+d + "%");
}
}
LFU算法
LFU
package com.lr.algurithm;
import com.lr.frame.Page;
import com.lr.tool.Node;
import sun.awt.Mutex;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.List;
public class LFU extends Thread {
private int lfu_i =;
public int lfu_lackpage=;//缺页数
public double lfu_ave_time=;//平均时间
public double lfu_total_time=;//总时间
public List<Node> lfu_memory_page = new ArrayList<>();//内存现有页数存放
public List<Integer> lfu_quick_table_page = new ArrayList<>();//快表现有页数存放
public Mutex pause = new Mutex();
public String snumber = new String();
public String interruption = new String();
public String totalTime = new String();
public String avrTime = new String();
public String missPage = new String();
public double start(int a, double per_time) {
if(!config.is_check) { //无快表模式
boolean flag = true;
int index =;
for (Node map:lfu_memory_page) {
if(map.key == a) {
flag = false;
break;
}
index ++ ;
}
if (flag) { //不在内存
lfu_lackpage ++ ;
//内存满，删去访问频率最小的那个，相等的频率按fifo删除
if(lfu_memory_page.size() >= config.memory_num) {
Node min_obj;
min_obj = lfu_memory_page.get();
for (Node pair : lfu_memory_page) {
if (pair.value < min_obj.value) {
min_obj = pair;
}
}
lfu_memory_page.remove(min_obj);
}
lfu_memory_page.add(new Node(a));
lfu_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else {
lfu_memory_page.get(index).value++;
lfu_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //快表模式
if(!lfu_quick_table_page.contains(a))//不在快表
{
boolean flag = true;
int index =;
for (Node map : lfu_memory_page) {
if (map.key == a) {
flag = false;
break;
}
index ++ ;
}
if (flag) { //不在内存
lfu_lackpage ++ ;
//内存满，删去访问频率最小的那个，相等的频率按lfu删除
if (lfu_memory_page.size() >= config.memory_num) {
Node min_obj;
min_obj = lfu_memory_page.get();
for (Node map : lfu_memory_page) {
if(map.value < min_obj.value) {
min_obj = map;
}
}
lfu_memory_page.remove(min_obj);
}
lfu_memory_page.add(new Node(a));
//快表置换用FIFO
if (lfu_quick_table_page.size() < config.quick_table_num) {
lfu_quick_table_page.add(a);
} else {
lfu_quick_table_page.remove();
lfu_quick_table_page.add(a);
}
lfu_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else { //在内存
lfu_memory_page.get(index).value++;
lfu_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //在快表
int index =;
for (Node map : lfu_memory_page) {
if(map.key == a) {
lfu_memory_page.get(index).value++;
break;
}
index++;
}
lfu_total_time += config.quick_table_access + config.memory_access;
per_time += config.quick_table_access + config.memory_access;
}
}
return per_time;
}
@Override
public void run() {
for(lfu_i =; lfu_i < config.taskSize; lfu_i ++ ) {
pause.lock();
double per_time =;
per_time = start(config.task[lfu_i], per_time);
String str = "查找";
String s = String.valueOf(config.task[lfu_i]);
snumber += str;
snumber += s;
snumber += ":";
for (int j =; j < config.memory_num; j ++) {
if (j < lfu_memory_page.size()) {
String s = String.valueOf(lfu_memory_page.get(j).key);
snumber+=s;
snumber+=" ";
} else {
snumber+=" ";
}
}
pause.unlock();
BigDecimal bd = new BigDecimal(per_time);
bd = bd.setScale(, RoundingMode.HALF_UP);
snumber += "耗费时间:" + bd + "\n";
Page.LFUtest.append(snumber);
snumber = "";
try {
sleep(config.run_time);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
String s = String.valueOf(config.taskSize);
s = String.valueOf(lfu_lackpage);
interruption = s + "次";
double d = (double)lfu_lackpage / config.taskSize *;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(, RoundingMode.HALF_UP);
lfu_ave_time = (double)lfu_total_time / config.taskSize;
totalTime = String.valueOf(lfu_total_time);
BigDecimal bda = new BigDecimal(lfu_ave_time);
bda = bda.setScale(, RoundingMode.HALF_UP);
avrTime = String.valueOf(bda);
missPage = bd + "%";
Page.lfu_interrupt_label.setText(interruption);
Page.lfu_total_time_label.setText(totalTime);
Page.lfu_ave_time_label.setText(avrTime);
Page.lfu_miss_page_label.setText(missPage);
// System.out.println("lfu"+s);
// System.out.println("lfu"+lfu_total_time);
// System.out.println("lfu"+lfu_ave_time);
// System.out.println("lfu"+d + "%");
}
}
Node
package com.lr.tool;
public class Node {
public int key;
public int value;
public Node() {
key =;
value =;
}
public Node(int Key) {
key = Key;
value =;
}
public Node(int a, int i) {
}
}
OPT算法
OPT
package com.lr.algurithm;
import com.lr.frame.Page;
import sun.awt.Mutex;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class OPT extends Thread {
private int opt_i =;
public int opt_lackpage=;//缺页数
public double opt_ave_time=;//平均时间
public double opt_total_time=;//总时间
public List<Integer> opt_memory_page = new ArrayList<>();//内存现有页数存放
// public int[] opt_memory_page = new int[config.taskSize];
public List<Integer> opt_quick_table_page = new ArrayList<>();//快表现有页数存放
public Mutex pause = new Mutex();
public String snumber = new String();
public String interruption = new String();
public String totalTime = new String();
public String avrTime = new String();
public String missPage = new String();
public double start(int a, double per_time) {
if (!config.is_check) { //无快表模式
if (!opt_memory_page.contains(a)) { //不在内存，产生缺页中断
opt_lackpage ++ ;
if (opt_memory_page.size() < config.memory_num) {
opt_memory_page.add(a);
} else { //遍历之后所有页号，与内存内页号相同则移到尾部，最后删除头部
Map<Integer, Boolean> has_move = new HashMap<>();//移动过的不能再移动
int cnt =;//移动次数要小于内存块数
for (int j =; j < config.taskSize; j ++ ) {
has_move.put(config.task[j], false);
}
for (int j = opt_i +; j < config.taskSize; j ++ ) { //从需要进入内存的页号的后一位开始
if(opt_memory_page.contains(config.task[j])
&& has_move.get(config.task[j]) != true
&& cnt < config.memory_num -)
{
int temp =;
for (int i =; i < opt_memory_page.size(); ++ i) {
if (config.task[j] == opt_memory_page.get(i))
temp = i;
}
opt_memory_page.remove(temp);
opt_memory_page.add(config.task[j]);
has_move.put(config.task[j], true);
cnt ++ ;
}
}
opt_memory_page.remove();
opt_memory_page.add(a);
}
opt_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else {
opt_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //快表模式
if(!opt_quick_table_page.contains(a)) { //不在快表
if(!opt_memory_page.contains(a)) { //不在内存，产生缺页中断
opt_lackpage ++ ;
if(opt_memory_page.size() < config.memory_num) { //内存块未满,直接调入
opt_memory_page.add(a);
} else {
Map<Integer, Boolean> has_move = new HashMap<>();//移动过的不能再移动
int cnt =;//移动次数要小于内存块数
for (int j =; j < config.taskSize; j ++ ) {
has_move.put(config.task[j], false);
}
for(int j = opt_i +; j < config.taskSize; j ++ ) { //从需要进入内存的页号的后一位开始
if(opt_memory_page.contains(config.task[j])
&& has_move.get(config.task[j]) != true
&& cnt < config.memory_num -) {
int temp =;
for (int i =; i < opt_memory_page.size(); ++ i) {
if (config.task[j] == opt_memory_page.get(i))
temp = i;
}
opt_memory_page.remove(temp);
opt_memory_page.add(config.task[j]);
has_move.put(config.task[j], true);
cnt++;
}
}
opt_memory_page.remove();
opt_memory_page.add(a);
}
//快表置换用FIFO
if(opt_quick_table_page.size() < config.quick_table_num) {
opt_quick_table_page.add(a);
} else {
opt_quick_table_page.remove();
opt_quick_table_page.add(a);
}
opt_total_time += * config.memory_access + config.miss_page_interrupt;
per_time += * config.memory_access + config.miss_page_interrupt;
} else { //在内存
opt_total_time += * config.memory_access;
per_time += * config.memory_access;
}
} else { //在快表
opt_total_time += config.quick_table_access + config.memory_access;
per_time += config.quick_table_access + config.memory_access;
}
}
return per_time;
}
@Override
public void run() {
for (opt_i =; opt_i < config.taskSize; opt_i ++ ) {
pause.lock();
double per_time =;
per_time = start(config.task[opt_i], per_time);
String str="查找";
String s = String.valueOf(config.task[opt_i]);
snumber += str;
snumber += s;
snumber += ":";
for (int j =; j < config.memory_num; j ++ ) {
if (j < opt_memory_page.size()) {
String s = String.valueOf(opt_memory_page.get(j));
snumber += s;
snumber += " ";
} else {
snumber+=" ";
}
}
pause.unlock();
BigDecimal bd = new BigDecimal(per_time);
bd = bd.setScale(, RoundingMode.HALF_UP);
snumber += "耗费时间:" + bd + "\n";
Page.OPTtest.append(snumber);
snumber = "";
try {
sleep(config.run_time);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
String s = String.valueOf(config.taskSize);
s = String.valueOf(opt_lackpage);
interruption = s + "次";
double d = (double)opt_lackpage / config.taskSize *;
BigDecimal bd = new BigDecimal(d);
bd = bd.setScale(, RoundingMode.HALF_UP);
opt_ave_time = (double)opt_total_time / config.taskSize;
totalTime = String.valueOf(opt_total_time);
BigDecimal bda = new BigDecimal(opt_ave_time);
bda = bda.setScale(, RoundingMode.HALF_UP);
avrTime = String.valueOf(bda);
missPage = bd + "%";
Page.opt_interrupt_label.setText(interruption);
Page.opt_total_time_label.setText(totalTime);
Page.opt_ave_time_label.setText(avrTime);
Page.opt_miss_page_label.setText(missPage);
// System.out.println("opt"+s);
// System.out.println("opt"+opt_total_time);
// System.out.println("opt"+opt_ave_time);
// System.out.println("opt"+d + "%");
}
}
连接数据库
保存记录
Save
package com.lr.db;
import java.sql.*;
import com.lr.frame.Page;
import com.lr.algurithm.config;
import javax.swing.*;
public class Save {
private static String url = null;
private static String username = null;
private static String password = null;
private static Connection conn = null;
private static Statement st = null;
public Save() {
try {
saveRecord();
} catch (SQLException throwables) {
throwables.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} finally {
if (st != null) {
try {
st.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
if (conn != null) {
try {
conn.close();
} catch (SQLException throwables) {
throwables.printStackTrace();
}
}
}
}
public void saveRecord() throws SQLException, ClassNotFoundException {
//.加载驱动
//DriverManager.registerDriver(new com.mysql.jdbc.Driver());
Class.forName("com.mysql.jdbc.Driver");//固定写法
//.用户信息和
url = "jdbc:mysql://.0.0.1:3306/os?useUnicode=true&characterEncoding=utf8&useSSL=true";
username = "root";
password = "";
//.连接成功，数据库对象 Connection 代表数据库
conn = DriverManager.getConnection(url, username, password);
//.获得SQL的执行对象
st = conn.createStatement();
String sql = "INSERT INTO test(memory_n,page_n,page_list,memory_t,quick_table_t," +
"interrupt_t,is_check,fifo_total_t,fifo_ave_t,fifo_miss_page,fifo_interrupt_n," +
"fifo_text,lru_total_t,lru_ave_t,lru_miss_page,lru_interrupt_n,lru_text," +
"lfu_total_t,lfu_ave_t,lfu_miss_page,lfu_interrupt_n,lfu_text,opt_total_t," +
"opt_ave_t,opt_miss_page,opt_interrupt_n,opt_text)VALUES('" + config.memory_num + "','" +
config.taskSize + "','" + Page.task_edit.getText() + "','" + config.memory_access + "','" +
config.quick_table_access + "','" + config.miss_page_interrupt + "','" +
config.is_check + "','" + Page.fifo_total_time_label.getText() + "','" +
Page.fifo_ave_time_label.getText() + "','" + Page.fifo_miss_page_label.getText() + "','" +
Page.fifo_interrupt_label.getText() + "','" + Page.FIFOtest.getText() + "','" +
Page.lru_total_time_label.getText() + "','" + Page.lru_ave_time_label.getText() + "','" +
Page.lru_miss_page_label.getText() + "','" + Page.lru_interrupt_label.getText() + "','" +
Page.LRUtest.getText() + "','" + Page.lfu_total_time_label.getText() + "','" +
Page.lfu_ave_time_label.getText() + "','" + Page.lfu_miss_page_label.getText() + "','" +
Page.lfu_interrupt_label.getText() + "','" + Page.LFUtest.getText() + "','" +
Page.opt_total_time_label.getText() + "','" + Page.opt_ave_time_label.getText() + "','" +
Page.opt_miss_page_label.getText() + "','" + Page.opt_interrupt_label.getText() + "','" +
Page.OPTtest.getText() + "')";
int i = st.executeUpdate(sql);
if (i >) {
JOptionPane.showMessageDialog(null, "保存成功", "提交信息",);
} else {
JOptionPane.showMessageDialog(null, "保存失败", "warning", JOptionPane.ERROR_MESSAGE);
}
}
public static void main(String[] args) {
new Save();
}
}
历史记录
History
package com.lr.db;
import javax.swing.*;
import java.awt.*;
import java.sql.*;
public class History {
private static String url=null;
private static String username=null;
private static String password=null;
private JFrame frame;
public History() {
frame = new JFrame("历史记录");
// frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); // 退出应用程序默认窗口关闭
// //获取与系统相关的默认工具类对象
Toolkit toolkit = Toolkit.getDefaultToolkit();
//获取屏幕分辨率
Dimension d = toolkit.getScreenSize();
frame.setBounds((int)(d.getWidth() -) / 2,(int)(d.getHeight() - 850) / 2,
, 850);
frame.setVisible(true);
try {
historyRecord();
} catch (ClassNotFoundException cnfe) {
cnfe.printStackTrace();
JOptionPane.showMessageDialog(null, "数据源错误", "错误", JOptionPane.ERROR_MESSAGE);
} catch (SQLException sqle) {
sqle.printStackTrace();
JOptionPane.showMessageDialog(null, "数据操作错误", "错误", JOptionPane.ERROR_MESSAGE);
}
}
public void historyRecord() throws SQLException, ClassNotFoundException {
//.加载驱动
//DriverManager.registerDriver(new com.mysql.jdbc.Driver());
Class.forName("com.mysql.jdbc.Driver");//固定写法
//.用户信息和
url="jdbc:mysql://.0.0.1:3306/os?useUnicode=true&characterEncoding=utf8&useSSL=true";
username="root";
password="";
//.连接成功，数据库对象 Connection 代表数据库
Connection conn=DriverManager.getConnection(url,username,password);
//.执行SQL的对象，去执行SQL，可能存在结果，返回结果信息
String sql = "select * from test";
PreparedStatement pstm = conn.prepareStatement(sql);
ResultSet rs = pstm.executeQuery();
// ResultSet rs=statement.executeQuery(sql);
int count =;
while (rs.next()) {
count++;
}
rs = pstm.executeQuery();
// 将查询获得的记录数据，转换成适合生成JTable的数据形式
Object[][] info = new Object[count][];
Object[] title = {"内存块数", "页面大小", " 页号序列", "内存存取时间", "快表存取时间",
"中断执行时间", "是否勾选快表", "FIFO总时间", "FIFO平均时间", "FIFO缺页率",
"FIFO中断次数", "FIFO执行过程", "LRU总时间", "LRU平均时间", "LRU缺页率",
"LRU中断次数", "LRU执行过程", "LFU总时间", "LFU平均时间", "LFU缺页率",
"LFU中断次数", "LFU执行过程", "OPT总时间", "OPT平均时间", "OPT缺页率",
"OPT中断次数", "OPT执行过程"};
count =;
while (rs.next()) {
// info[count][] = rs.getObject("id");
info[count][] = rs.getObject("memory_n");
info[count][] = rs.getObject("page_n");
info[count][] = rs.getObject("page_list");
info[count][] = rs.getObject("memory_t");
info[count][] = rs.getObject("quick_table_t");
info[count][] = rs.getObject("interrupt_t");
info[count][] = rs.getObject("is_check");
info[count][] = rs.getObject("fifo_total_t");
info[count][] = rs.getObject("fifo_ave_t");
info[count][] = rs.getObject("fifo_miss_page");
info[count][] = rs.getObject("fifo_interrupt_n");
info[count][] = rs.getObject("fifo_text");
info[count][] = rs.getObject("lru_total_t");
info[count][] = rs.getObject("lru_ave_t");
info[count][] = rs.getObject("lru_miss_page");
info[count][] = rs.getObject("lru_interrupt_n");
info[count][] = rs.getObject("lru_text");
info[count][] = rs.getObject("lfu_total_t");
info[count][] = rs.getObject("lfu_ave_t");
info[count][] = rs.getObject("lfu_miss_page");
info[count][] = rs.getObject("lfu_interrupt_n");
info[count][] = rs.getObject("lfu_text");
info[count][] = rs.getObject("opt_total_t");
info[count][] = rs.getObject("opt_ave_t");
info[count][] = rs.getObject("opt_miss_page");
info[count][] = rs.getObject("opt_interrupt_n");
info[count][] = rs.getObject("opt_text");
count++;
}
JTable table = new JTable(info, title);
// 设置表格内容颜色
table.setForeground(Color.BLACK); // 字体颜色
table.setFont(new Font(null, Font.PLAIN,)); // 字体样式
table.setSelectionForeground(Color.DARK_GRAY); // 选中后字体颜色
table.setSelectionBackground(Color.LIGHT_GRAY); // 选中后字体背景
table.setGridColor(Color.GRAY); // 网格颜色
// 设置表头
table.getTableHeader().setFont(new Font(null, Font.BOLD,)); // 设置表头名称字体样式
table.getTableHeader().setForeground(Color.RED); // 设置表头名称字体颜色
table.getTableHeader().setReorderingAllowed(false); // 设置不允许拖动重新排序各列
// 设置行高
table.setRowHeight();
// 第一列列宽设置为
table.getColumnModel().getColumn().setPreferredWidth(40);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
JScrollPane scroll = new JScrollPane(table);
frame.add(scroll);
frame.setVisible(true);
frame.pack();
}
public static void main(String[] args) {
new History();
}
}
GUI界面
Page
package com.lr.frame;
import com.lr.algurithm.FIFO;
import com.lr.algurithm.LFU;
import com.lr.algurithm.LRU;
import com.lr.algurithm.OPT;
import com.lr.algurithm.config;
import com.lr.db.History;
import com.lr.db.Save;
import javax.swing.*;
import java.awt.*;
import java.util.Arrays;
import java.util.List;
public class Page {
public JFrame frame;
private JPanel panel;
public static TextArea FIFOtest;
public static TextArea LRUtest;
public static TextArea LFUtest;
public static TextArea OPTtest;
public static JTextField task_edit;
public static JTextField memory_num_edit;
public static JTextField taskSize_edit;
public static JTextField taskSize_low_edit;
public static JTextField taskSize_high_edit;
public static JTextField task_low_edit;
public static JTextField task_high_edit;
public static JCheckBox quick_table_check;
public static JTextField memory_access_edit;
public static JTextField quick_table_access_edit;
public static JTextField miss_page_interrupt_edit;
public static JTextField run_time_edit;
public static JLabel fifo_interrupt_label;
public static JLabel fifo_miss_page_label;
public static JLabel fifo_total_time_label;
public static JLabel fifo_ave_time_label;
public static JLabel lru_interrupt_label;
public static JLabel lru_miss_page_label;
public static JLabel lru_total_time_label;
public static JLabel lru_ave_time_label;
public static JLabel lfu_interrupt_label;
public static JLabel lfu_miss_page_label;
public static JLabel lfu_total_time_label;
public static JLabel lfu_ave_time_label;
public static JLabel opt_interrupt_label;
public static JLabel opt_miss_page_label;
public static JLabel opt_total_time_label;
public static JLabel opt_ave_time_label;
public static JTextField quick_table_num_edit;
FIFO fifo = new FIFO();
LRU lru = new LRU();
LFU lfu = new LFU();
OPT opt = new OPT();
public Page() {
frame = new JFrame();
frame.setTitle("页面置换算法");
//获取与系统相关的默认工具类对象
Toolkit toolkit = Toolkit.getDefaultToolkit();
//获取屏幕分辨率
Dimension d = toolkit.getScreenSize();
frame.setBounds((int)(d.getWidth() -) / 2,(int)(d.getHeight() - 895) / 2,
, 895);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); // 退出应用程序默认窗口关闭
frame.getContentPane().setLayout(null);
// frame.setVisible(true);
panel = new JPanel();
panel.setBounds(, 10, 1165, 890);
frame.getContentPane().add(panel);
panel.setLayout(null);
JLabel label_ = new JLabel("内存块数:");
label_.setBounds(35, 20, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
memory_num_edit = new JTextField();
memory_num_edit.setBounds(, 20, 180, 20);
// frame.getContentPane().add(memory_num_edit);
panel.add(memory_num_edit);
// memory_num_edit.setColumns();
JLabel label_ = new JLabel("页面数量：");
label_.setBounds(35, 60, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
taskSize_edit = new JTextField();
taskSize_edit.setBounds(, 60, 180, 20);
// frame.getContentPane().add(taskSize_edit);
panel.add(taskSize_edit);
taskSize_low_edit = new JTextField();
taskSize_low_edit.setBounds(, 60, 40, 20);
// frame.getContentPane().add(taskSize_low_edit);
panel.add(taskSize_low_edit);
JLabel label_ = new JLabel("-");
label_.setBounds(525, 60, 10, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
taskSize_high_edit = new JTextField();
taskSize_high_edit.setBounds(, 60, 40, 20);
// frame.getContentPane().add(taskSize_high_edit);
panel.add(taskSize_high_edit);
JButton taskSize_btn = new JButton("随机生成");
taskSize_btn.setBounds(, 55, 120, 30);
taskSize_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(taskSize_btn);
panel.add(taskSize_btn);
taskSize_btn.addActionListener(e -> {
if (!taskSize_low_edit.getText().isEmpty()) {
config.page_low = Integer.parseInt(taskSize_low_edit.getText());
} else {
config.page_low =;
}
if (!taskSize_high_edit.getText().isEmpty())
config.page_high = Integer.parseInt(taskSize_high_edit.getText());
else
config.page_high =;
// int r = (int) Math.random();
config.taskSize = (int) (config.page_low + Math.random() * (config.page_high - config.page_low +));
taskSize_edit.setText(String.valueOf(config.taskSize));
});
JLabel label_ = new JLabel("页面序号：");
label_.setBounds(35, 100, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
task_low_edit = new JTextField();
task_low_edit.setBounds(, 100, 40, 20);
// frame.getContentPane().add(task_low_edit);
panel.add(task_low_edit);
JLabel label_ = new JLabel("-");
label_.setBounds(525, 100, 10, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
task_high_edit = new JTextField();
task_high_edit.setBounds(, 100, 40, 20);
// frame.getContentPane().add(task_high_edit);
panel.add(task_high_edit);
task_edit = new JTextField();
task_edit.setBounds(, 100, 180, 20);
// frame.getContentPane().add(task_edit);
panel.add(task_edit);
JButton task_btn = new JButton("随机生成");
task_btn.setBounds(, 95, 120, 30);
task_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(task_btn);
panel.add(task_btn);
task_btn.addActionListener(e -> {
if (!task_low_edit.getText().isEmpty()) {
config.page_list_low = Integer.parseInt(task_low_edit.getText());
} else {
config.page_list_low =;
}
if (!task_high_edit.getText().isEmpty())
config.page_list_high = Integer.parseInt(task_high_edit.getText());
else
config.page_list_high =;
config.taskSize = Integer.parseInt(taskSize_edit.getText());
String list = "";
config.task = new int[config.taskSize];
int i =;
for (; i < config.taskSize -; i ++ ) {
config.task[i] = (int) (config.page_list_low + Math.random() * (config.page_list_high - config.page_list_low +));
list += config.task[i] + ",";
}
config.task[i] = (int) (config.page_list_low + Math.random() * (config.page_list_high - config.page_list_low +));
list += config.task[i];
task_edit.setText(list);
});
JLabel label_ = new JLabel("快表大小：");
label_.setBounds(35, 145, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
quick_table_num_edit = new JTextField();
quick_table_num_edit.setBounds(, 145, 180, 20);
// frame.getContentPane().add(quick_table_num_edit);
panel.add(quick_table_num_edit);
quick_table_num_edit.addActionListener(e -> {
config.quick_table_num = Integer.parseInt(quick_table_num_edit.getText());
});
quick_table_num_edit.setEnabled(false);
quick_table_check = new JCheckBox("启用快表");
quick_table_check.setBounds(, 145, 130, 30);
quick_table_check.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(quick_table_check);
panel.add(quick_table_check);
quick_table_check.addActionListener(e -> {
on_quick_table_check_clicked(quick_table_check.isSelected());
});
JLabel label_ = new JLabel("内存存取时间：");
label_.setBounds(700, 20, 140, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
memory_access_edit = new JTextField();
memory_access_edit.setBounds(, 20, 50, 20);
// frame.getContentPane().add(memory_access_edit);
panel.add(memory_access_edit);
JLabel label_ = new JLabel("ms");
label_.setBounds(900, 20, 20, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
JLabel label_ = new JLabel("快表存取时间：");
label_.setBounds(700, 60, 140, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
quick_table_access_edit = new JTextField();
quick_table_access_edit.setBounds(, 60, 50, 20);
// frame.getContentPane().add(quick_table_access_edit);
panel.add(quick_table_access_edit);
JLabel label_ = new JLabel("ms");
label_.setBounds(900, 60, 20, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
JLabel label_ = new JLabel("缺页中断时间：");
label_.setBounds(700, 100, 140, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
miss_page_interrupt_edit = new JTextField();
miss_page_interrupt_edit.setBounds(, 100, 50, 20);
// frame.getContentPane().add(miss_page_interrupt_edit);
panel.add(miss_page_interrupt_edit);
JLabel label_ = new JLabel("ms");
label_.setBounds(900, 100, 20, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
JLabel label_ = new JLabel("执行时间控制：");
label_.setBounds(700, 140, 140, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
run_time_edit = new JTextField();
run_time_edit.setBounds(, 140, 50, 20);
// frame.getContentPane().add(run_time_edit);
panel.add(run_time_edit);
JLabel label_ = new JLabel("ms");
label_.setBounds(900, 140, 20, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
JButton start_btn = new JButton("开始执行");
start_btn.setBounds(, 185, 120, 30);
start_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(start_btn);
panel.add(start_btn);
start_btn.addActionListener(e -> {
on_clear_btn_clicked();
config.memory_num = Integer.parseInt(memory_num_edit.getText());
if (quick_table_check.isSelected()) {
config.quick_table_num = Integer.parseInt(quick_table_num_edit.getText());
if (quick_table_check.isSelected() && config.quick_table_num >= config.memory_num) {
JOptionPane.showMessageDialog(null, "快表大小应该小于内存大小", "warning", JOptionPane.ERROR_MESSAGE);
return;
}
}
config.memory_access = Double.parseDouble(memory_access_edit.getText());
config.quick_table_access = Double.parseDouble(quick_table_access_edit.getText());
config.miss_page_interrupt = Double.parseDouble(miss_page_interrupt_edit.getText());
config.is_check = Boolean.parseBoolean(String.valueOf(quick_table_check.isSelected()));
String str = task_edit.getText();
List<String> lst = Arrays.asList(str.split(","));
if (run_time_edit.getText().isEmpty()) {
run_time_edit.setText("");
}
config.run_time = Integer.parseInt(run_time_edit.getText());
config.taskSize = lst.size();
config.task = new int[config.taskSize];
for (int i =; i < config.taskSize; ++ i) {
str = lst.get(i);
config.task[i] = Integer.parseInt(str);
}
new Thread(() -> fifo.run()).start();
new Thread(() -> lru.run()).start();
new Thread(() -> lfu.run()).start();
new Thread(() -> opt.run()).start();
});
JButton stop_continue_btn = new JButton("暂停执行");
stop_continue_btn.setBounds(, 185, 120, 30);
stop_continue_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(stop_continue_btn);
panel.add(stop_continue_btn);
stop_continue_btn.addActionListener(e -> {
if (stop_continue_btn.getText() == "暂停执行") {
fifo.pause.lock();
lru.pause.lock();
lfu.pause.lock();
opt.pause.lock();
stop_continue_btn.setText("继续执行");
} else {
fifo.pause.unlock();
lru.pause.unlock();
lfu.pause.unlock();
opt.pause.unlock();
stop_continue_btn.setText("暂停执行");
}
});
JButton stop_btn = new JButton("结束执行");
stop_btn.setBounds(, 185, 120, 30);
stop_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(stop_btn);
panel.add(stop_btn);
stop_btn.addActionListener(e -> {
System.exit();
});
// FIFO
JLabel lblFifo = new JLabel("FIFO");
title(lblFifo,, 250, 230, 50, 15);
FIFOtest = new TextArea();
textBox(FIFOtest,, 180, 250, 200, 250);
// JScrollPane scroll_fifo = new JScrollPane(FIFOtest);
// scroll(scroll_fifo,, 250, 200, 250);
// LRU
JLabel lblLru = new JLabel("LRU");
title(lblLru,, 490, 230, 50, 15);
LRUtest = new TextArea();
textBox(LRUtest,, 420, 250, 200, 250);
// JScrollPane scroll_lru = new JScrollPane(LRUtest);
// scroll(scroll_lru,, 250, 200, 250);
// LFU
JLabel lblLfu = new JLabel("LFU");
title(lblLfu,, 730, 230, 50, 15);
LFUtest = new TextArea();
textBox(LFUtest,, 660, 250, 200, 250);
// JScrollPane scroll_lfu = new JScrollPane(LFUtest);
// scroll(scroll_lfu,, 250, 200, 250);
//OPT
JLabel lblOpt = new JLabel("OPT");
title(lblOpt,, 970, 230, 50, 15);
OPTtest = new TextArea();
textBox(OPTtest,, 900, 250, 200, 250);
// JScrollPane scroll_opt= new JScrollPane(OPTtest);
// scroll(scroll_opt,, 250, 200, 250);
JLabel label_ = new JLabel("中断次数：");
label_.setBounds(35, 550, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
fifo_interrupt_label = new JLabel("");
fifo_interrupt_label.setBounds(, 550, 100, 20);
fifo_interrupt_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(fifo_interrupt_label);
panel.add(fifo_interrupt_label);
lru_interrupt_label = new JLabel("");
lru_interrupt_label.setBounds(, 550, 100, 20);
lru_interrupt_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lru_interrupt_label);
panel.add(lru_interrupt_label);
lfu_interrupt_label = new JLabel("");
lfu_interrupt_label.setBounds(, 550, 100, 20);
lfu_interrupt_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lfu_interrupt_label);
panel.add(lfu_interrupt_label);
opt_interrupt_label = new JLabel("");
opt_interrupt_label.setBounds(, 550, 100, 20);
opt_interrupt_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(opt_interrupt_label);
panel.add(opt_interrupt_label);
JLabel label_ = new JLabel("总时间：");
label_.setBounds(35, 600, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
fifo_total_time_label = new JLabel("");
fifo_total_time_label.setBounds(, 600, 100, 20);
fifo_total_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(fifo_total_time_label);
panel.add(fifo_total_time_label);
lru_total_time_label = new JLabel("");
lru_total_time_label.setBounds(, 600, 100, 20);
lru_total_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lru_total_time_label);
panel.add(lru_total_time_label);
lfu_total_time_label = new JLabel("");
lfu_total_time_label.setBounds(, 600, 100, 20);
lfu_total_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lfu_total_time_label);
panel.add(lfu_total_time_label);
opt_total_time_label = new JLabel("");
opt_total_time_label.setBounds(, 600, 100, 20);
opt_total_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(opt_total_time_label);
panel.add(opt_total_time_label);
JLabel label_ = new JLabel("平均时间：");
label_.setBounds(35, 650, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
fifo_ave_time_label = new JLabel("");
fifo_ave_time_label.setBounds(, 650, 100, 20);
fifo_ave_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(fifo_ave_time_label);
panel.add(fifo_ave_time_label);
lru_ave_time_label = new JLabel("");
lru_ave_time_label.setBounds(, 650, 100, 20);
lru_ave_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lru_ave_time_label);
panel.add(lru_ave_time_label);
lfu_ave_time_label = new JLabel("");
lfu_ave_time_label.setBounds(, 650, 100, 20);
lfu_ave_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lfu_ave_time_label);
panel.add(lfu_ave_time_label);
opt_ave_time_label = new JLabel("");
opt_ave_time_label.setBounds(, 650, 100, 20);
opt_ave_time_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(opt_ave_time_label);
panel.add(opt_ave_time_label);
JLabel label_ = new JLabel("缺页率：");
label_.setBounds(35, 700, 100, 20);
label_.setFont(new Font("宋体", Font.PLAIN, 20));
// frame.getContentPane().add(label_);
panel.add(label_);
fifo_miss_page_label = new JLabel("");
fifo_miss_page_label.setBounds(, 700, 100, 20);
fifo_miss_page_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(fifo_miss_page_label);
panel.add(fifo_miss_page_label);
lru_miss_page_label = new JLabel("");
lru_miss_page_label.setBounds(, 700, 100, 20);
lru_miss_page_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lru_miss_page_label);
panel.add(lru_miss_page_label);
lfu_miss_page_label = new JLabel("");
lfu_miss_page_label.setBounds(, 700, 100, 20);
lfu_miss_page_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(lfu_miss_page_label);
panel.add(lfu_miss_page_label);
opt_miss_page_label = new JLabel("");
opt_miss_page_label.setBounds(, 700, 100, 20);
opt_miss_page_label.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(opt_miss_page_label);
panel.add(opt_miss_page_label);
JButton save_btn = new JButton("保存");
save_btn.setBounds(, 760, 120, 30);
save_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(save_btn);
panel.add(save_btn);
save_btn.addActionListener(e -> {
new Save();
});
JButton open_btn = new JButton("打开");
open_btn.setBounds(, 760, 120, 30);
open_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(open_btn);
panel.add(open_btn);
open_btn.addActionListener(e -> {
new History();
});
JButton clear_btn = new JButton("清空");
clear_btn.setBounds(, 760, 120, 30);
clear_btn.setFont(new Font("宋体", Font.PLAIN,));
// frame.getContentPane().add(clear_btn);
panel.add(clear_btn);
clear_btn.addActionListener(e->{
on_clear_btn_clicked();
clear_parameter();
});
}
/**
* 四种算法标题
* @param label
* @param size
* @param x
* @param y
* @param w
* @param h
*/
public void title(JLabel label, int size, int x, int y ,int w, int h) {
label.setFont(new Font("宋体", Font.PLAIN, size));
label.setBounds(x, y, w, h);
// frame.getContentPane().add(label);
panel.add(label);
}
/**
* 四种算法运行结果显示框
* @param textArea
* @param size
* @param x
* @param y
* @param w
* @param h
*/
public void textBox(TextArea textArea, int size, int x, int y ,int w, int h) {
textArea.setFont(new Font("宋体", Font.PLAIN, size));
textArea.setBackground(SystemColor.controlHighlight);
textArea.setBounds(x, y, w, h);
// frame.getContentPane().add(textArea);
panel.add(textArea);
}
/**
* 分别设置水平和垂直滚动条自动出现
* @param scrollPane
* @param x
* @param y
* @param w
* @param h
*/
public void scroll(JScrollPane scrollPane,int x, int y, int w, int h) {
scrollPane.setLocation(x, y);
scrollPane.setSize(w, h);
scrollPane.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
// frame.getContentPane().add(scrollPane);
panel.add(scrollPane);
}
public void on_clear_btn_clicked() {
// fifo.task[] = new int[fifo.taskSize];
final int[] task = config.task;
FIFOtest.setText("");
fifo.fifo_lackpage =;
fifo.fifo_ave_time=;
fifo.fifo_total_time=;
fifo.fifo_memory_page.clear();
fifo.fifo_quick_table_page.clear();
fifo.fifo_memory_page.clear();
fifo_interrupt_label.setText("");
fifo_miss_page_label.setText("");
fifo_total_time_label.setText("");
fifo_ave_time_label.setText("");
LRUtest.setText("");
lru.lru_lackpage =;
lru.lru_ave_time=;
lru.lru_total_time=;
lru.lru_memory_page.clear();
lru.lru_quick_table_page.clear();
lru_interrupt_label.setText("");
lru_miss_page_label.setText("");
lru_total_time_label.setText("");
lru_ave_time_label.setText("");
LFUtest.setText("");
lfu.lfu_lackpage =;
lfu.lfu_ave_time=;
lfu.lfu_total_time=;
lfu.lfu_memory_page.clear();
lfu.lfu_quick_table_page.clear();
lfu_interrupt_label.setText("");
lfu_miss_page_label.setText("");
lfu_total_time_label.setText("");
lfu_ave_time_label.setText("");
OPTtest.setText("");
opt.opt_lackpage =;
opt.opt_ave_time=;
opt.opt_total_time=;
opt.opt_memory_page.clear();
opt.opt_quick_table_page.clear();
opt_interrupt_label.setText("");
opt_miss_page_label.setText("");
opt_total_time_label.setText("");
opt_ave_time_label.setText("");
}
public static void on_quick_table_check_clicked(boolean checked) {
if (checked)
quick_table_num_edit.setEnabled(true);
else
quick_table_num_edit.setEnabled(false);
}
public static void clear_parameter() {
memory_num_edit.setText("");
taskSize_edit.setText("");
taskSize_low_edit.setText("");
taskSize_high_edit.setText("");
task_low_edit.setText("");
task_high_edit.setText("");
task_edit.setText("");
quick_table_num_edit.setText("");
memory_access_edit.setText("");
quick_table_access_edit.setText("");
miss_page_interrupt_edit.setText("");
run_time_edit.setText("");
quick_table_check.setSelected(false);
quick_table_num_edit.setEnabled(false);
}
public static void main(String[] args) {
Page window = new Page();
window.frame.setVisible(true);
}
}