prioritydemo.java

java 教程相应的代码 全是自己写的内附注释 很容易看明白的

package demo.chapter09.priority;

public class PriorityDemo {

	public static void main(String[] args) {
		Thread main = Thread.currentThread();
		showPriority(main);
		main.setPriority(Thread.MIN_PRIORITY);

		Thread t1 = new Thread(new Runner());
		t1.setName("线程1");
		// t1.setPriority(Thread.NORM_PRIORITY); 默认优先级
		t1.start();
		
		Thread t2 = new Thread(new Runner());
		t2.setName("线程2");
		t2.setPriority(Thread.MAX_PRIORITY);
		t2.start();
		
		System.out.println("主线程结束");
	}
	
	public static void showPriority(Thread t) {
		System.out.println(Thread.currentThread().getName() + ":" + t.getPriority());
	}
	
	private static class Runner implements Runnable {
		@Override
		public void run() {
			for (int i = 0; i < 10000; i++) {
				if (i % 100 == 0) {
					String name = Thread.currentThread().getName();
					System.out.println(name + ":" + i / 100);
					try {
						Thread.sleep(10);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
		}
	}

}