java图形化进程调度设计与实现_java实现模拟进程调度过程

Java图形化进程调度可以通过Java Swing等界面库实现。下面是一个简单的模拟进程调度过程的Java实现示例：

import java.util.LinkedList;
import java.util.Queue;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class ProcessSchedulingSimulation extends JFrame {
    private Queue<Process> readyQueue = new LinkedList<>();
    private Process runningProcess = null;
    private JLabel statusLabel;

    public ProcessSchedulingSimulation() {
        setTitle("Process Scheduling Simulation");
        setSize(300, 200);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel();
        statusLabel = new JLabel("No process is running.");
        panel.add(statusLabel);
        add(panel);
        setVisible(true);
    }

    private void addProcess(Process process) {
        readyQueue.offer(process);
        statusLabel.setText("Process " + process.getId() + " is added to the ready queue.");
        if (runningProcess == null) {
            runNextProcess();
        }
    }

    private void runNextProcess() {
        if (!readyQueue.isEmpty()) {
            runningProcess = readyQueue.poll();
            statusLabel.setText("Process " + runningProcess.getId() + " is running.");
            runningProcess.run();
            runningProcess = null;
            runNextProcess();
        } else {
            statusLabel.setText("No process is running.");
        }
    }

    public static void main(String[] args) {
        ProcessSchedulingSimulation simulation = new ProcessSchedulingSimulation();
        simulation.addProcess(new Process(1, 5));
        simulation.addProcess(new Process(2, 3));
        simulation.addProcess(new Process(3, 2));
        simulation.addProcess(new Process(4, 6));
    }

    private static class Process {
        private int id;
        private int timeLeft;

        public Process(int id, int time) {
            this.id = id;
            this.timeLeft = time;
        }

        public int getId() {
            return id;
        }

        public void run() {
            try {
                Thread.sleep(timeLeft * 1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

在这个示例中，定义了一个`Process`类表示进程，包含进程ID和剩余执行时间。`ProcessSchedulingSimulation`类实现了一个简单的进程调度模拟，包含一个就绪队列`readyQueue`和一个正在运行的进程`runningProcess`。当新的进程加入就绪队列时，如果当前没有运行的进程，则立即运行队首的进程。运行过程中，进程会休眠对应的执行时间。当一个进程运行完毕后，调度器会尝试运行下一个进程，如果就绪队列为空，则当前没有进程正在运行。

在`main`方法中，创建了四个进程，并依次加入就绪队列，模拟了进程调度的过程。界面上的`statusLabel`会实时更新当前运行的进程信息。