java 编写一个应用程序创建两个线程，一个线程打印输出1～1000之间所有的奇数，另外一个线程打印输出1～1000之间所有的偶数，要求两个线程随机休眠一段时间后（1秒内）继续打印输出下一个数。分别使用Runnable接口和Tread类编程实现。

使用Runnable接口实现：

public class PrintOddEven implements Runnable {
    private int start;
    private int end;
    private boolean isOdd;

    public PrintOddEven(int start, int end, boolean isOdd) {
        this.start = start;
        this.end = end;
        this.isOdd = isOdd;
    }

    @Override
    public void run() {
        for (int i = start; i <= end; i++) {
            if (isOdd && i % 2 != 0) {
                System.out.println(Thread.currentThread().getName() + " : " + i);
            } else if (!isOdd && i % 2 == 0) {
                System.out.println(Thread.currentThread().getName() + " : " + i);
            }

            try {
                Thread.sleep((long)(Math.random() * 1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        PrintOddEven odd = new PrintOddEven(1, 1000, true);
        PrintOddEven even = new PrintOddEven(1, 1000, false);

        Thread oddThread = new Thread(odd, "Odd");
        Thread evenThread = new Thread(even, "Even");

        oddThread.start();
        evenThread.start();
    }
}

使用Thread类实现：

public class PrintOddEven extends Thread {
    private int start;
    private int end;
    private boolean isOdd;

    public PrintOddEven(int start, int end, boolean isOdd) {
        this.start = start;
        this.end = end;
        this.isOdd = isOdd;
    }

    @Override
    public void run() {
        for (int i = start; i <= end; i++) {
            if (isOdd && i % 2 != 0) {
                System.out.println(Thread.currentThread().getName() + " : " + i);
            } else if (!isOdd && i % 2 == 0) {
                System.out.println(Thread.currentThread().getName() + " : " + i);
            }

            try {
                Thread.sleep((long)(Math.random() * 1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        PrintOddEven odd = new PrintOddEven(1, 1000, true);
        PrintOddEven even = new PrintOddEven(1, 1000, false);

        odd.start();
        even.start();
    }
}

注意，两种实现方式的核心代码是相同的。