ThreadState.java Source code

Introduction

Here is the source code for ThreadState.java

Source

class ThreadState extends Thread {
    private boolean keepRunning = true;
    private boolean wait = false;
    private Object syncObject = null;

    public ThreadState(Object syncObject) {
        this.syncObject = syncObject;
    }

    public void run() {
        while (keepRunning) {
            synchronized (syncObject) {
                if (wait) {
                    try {
                        syncObject.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

    public void setKeepRunning(boolean keepRunning) {
        this.keepRunning = keepRunning;
    }

    public void setWait(boolean wait) {
        this.wait = wait;
    }
}

public class Main {
    public static void main(String[] args) throws InterruptedException {
        Object syncObject = new Object();
        ThreadState ts = new ThreadState(syncObject);
        System.out.println("Before start()-ts.isAlive():" + ts.isAlive());
        System.out.println("#1:" + ts.getState());

        ts.start();
        System.out.println("After start()-ts.isAlive():" + ts.isAlive());
        System.out.println("#2:" + ts.getState());
        ts.setWait(true);

        Thread.currentThread().sleep(100);

        synchronized (syncObject) {
            System.out.println("#3:" + ts.getState());
            ts.setWait(false);
            syncObject.notifyAll();
        }

        Thread.currentThread().sleep(2000);
        System.out.println("#4:" + ts.getState());
        ts.setKeepRunning(false);

        Thread.currentThread().sleep(2000);
        System.out.println("#5:" + ts.getState());
        System.out.println("At the   end. ts.isAlive():" + ts.isAlive());
    }
}