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 PrintNumber implements Runnable {
    private int start;
    private int end;
    private int increment;

    public PrintNumber(int start, int end, int increment) {
        this.start = start;
        this.end = end;
        this.increment = increment;
    }

    @Override
    public void run() {
        for (int i = start; i <= end; i += increment) {
            System.out.println(Thread.currentThread().getName() + ": " + i);
            try {
                Thread.sleep((long) (Math.random() * 1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Thread t1 = new Thread(new PrintNumber(1, 1000, 2), "Even");
        Thread t2 = new Thread(new PrintNumber(2, 1000, 2), "Odd");

        t1.start();
        t2.start();
    }
}

使用Thread类实现：

public class PrintNumber extends Thread {
    private int start;
    private int end;
    private int increment;

    public PrintNumber(String name, int start, int end, int increment) {
        super(name);
        this.start = start;
        this.end = end;
        this.increment = increment;
    }

    @Override
    public void run() {
        for (int i = start; i <= end; i += increment) {
            System.out.println(Thread.currentThread().getName() + ": " + i);
            try {
                Thread.sleep((long) (Math.random() * 1000));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Thread t1 = new PrintNumber("Even", 1, 1000, 2);
        Thread t2 = new PrintNumber("Odd", 2, 1000, 2);

        t1.start();
        t2.start();
    }
}