java时间片轮转进程调度
时间: 2023-11-24 13:52:19 浏览: 31
以下是Java实现时间片轮转进程调度的示例代码:
```java
import java.util.LinkedList;
import java.util.Queue;
public class TimeSliceScheduler {
private Queue<Process> readyQueue;
private int timeSlice;
public TimeSliceScheduler(int timeSlice) {
this.readyQueue = new LinkedList<>();
this.timeSlice = timeSlice; }
public void addProcess(Process process) {
readyQueue.add(process);
}
public void run() {
int currentTime = 0;
while (!readyQueue.isEmpty()) {
Process currentProcess = readyQueue.poll();
System.out.println("Time " + currentTime + ": " + currentProcess.getName() + " is running.");
currentProcess.execute(timeSlice);
if (currentProcess.isFinished()) {
System.out.println("Time " + currentTime + ": " + currentProcess.getName() + " is finished.");
} else {
System.out.println("Time " + currentTime + ": " + currentProcess.getName() + " is added to the end of the ready queue.");
readyQueue.add(currentProcess);
}
currentTime += timeSlice;
}
}
}
class Process {
private String name;
private int remainingTime;
public Process(String name, int time) {
this.name = name;
this.remainingTime = time;
}
public String getName() {
return name;
}
public void execute(int timeSlice) {
if (remainingTime <= timeSlice) {
remainingTime = 0;
} else {
remainingTime -= timeSlice;
}
}
public boolean isFinished() {
return remainingTime == 0;
}
}
```
这个示例代码中,`TimeSliceScheduler`类是时间片轮转调度器,`Process`类是进程类。`TimeSliceScheduler`类中的`addProcess`方法用于将进程添加到就绪队列中,`run`方法用于执行调度。在`run`方法中,我们使用一个`while`循环来模拟时间的流逝,每次从就绪队列中取出一个进程并执行,如果进程执行完毕,则输出进程完成的信息,否则将进程放回就绪队列的队尾。