多線程，設置線程的優先級。

public class Demo06 {
    public static void main(String[] args) {
        Thread t1 = new Thread() {
            public void run() {
                for (int i = 0; i < 10; i++) {
                    System.out.println(getName() + "...AAAAAAAAAA");
                }
            }
        };
        Thread t2 = new Thread() {
            public void run() {
                for (int i = 0; i < 10; i++) {
                    System.out.println(getName() + "...BBBBBBBBBB");
                }
            }
        };
        t1.setPriority(Thread.MAX_PRIORITY);      //設置線程最大優先級
        t2.setPriority(Thread.MIN_PRIORITY);      //設置線程最小優先級
        t1.start();
        t2.start();
    }
}