三线程打印

三条线程，一条线程打印0，一条打印奇数，一条打印偶数，比如01020304…
代码如下：

public class MyThread {

    private int number = 1;

    public static void main(String[] args) {
        MyThread myThread = new MyThread();
        new Thread(myThread::print, "0").start();
        new Thread(myThread::print, "奇数").start();
        new Thread(myThread::print, "偶数").start();
    }

    void print() {
        while (true){
            synchronized (this){
                String name = Thread.currentThread().getName();
                if(("0".equals(name) && number % 2 == 0)
                        || (!"0".equals(name) && number % 2 != 0)
                        || ("奇数".equals(name) && number / 2 % 2 == 0)
                        || ("偶数".equals(name) && number / 2 % 2 != 0)){
                    try {
                        this.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }else {
                    System.out.println("0".equals(name) ? ++number % 2 : ++number / 2);
                    this.notifyAll();
                }
            }
        }
    }
}

或者

public class MyThread {

    private int num = 1;

    public static void main(String[] args) {
        MyThread myThread = new MyThread();
        new Thread(myThread2::zero).start();
        new Thread(myThread2::even).start();
        new Thread(myThread2::odd).start();
    }

    void zero() {
        while (true) {
            synchronized (this) {
                if (num % 2 != 0) {
                    System.out.println(++num % 2);
                    this.notifyAll();
                } else {
                    try {
                        this.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

            }
        }
    }

    void even() {
        while (true) {
            synchronized (this) {
                if (num / 2 % 2 != 0 && num % 2 == 0) {
                    System.out.println(++num / 2);
                    this.notifyAll();
                } else {
                    try {
                        this.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

    void odd() {
        while (true) {
            synchronized (this) {
                if (num / 2 % 2 == 0 && num % 2 == 0) {
                    System.out.println(++num / 2);
                    this.notifyAll();
                } else {
                    try {
                        this.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}