java 多线程学习

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//java的两种多线程实现方式其实是一种，Thread 实现Runnable接口 //因为Thred是单继承，所以给出Runnable能让一个类同时实现多个接口或者继承1个类 //Runnable接口的子类如果要实现线程必须要借助Thread类 //证明 //public Thread(Runnable target) { // init(null, target, "Thread-" + nextThreadNum(), 0); // }

//第一种实现形式

public class thread_two implements Runnable {

public static void main(String args[]) {

	new Thread(new thread_two("mao")).start();
	
	new Thread(new thread_two("hu")).start();

}

private String name;

public thread_two(String name) {
	this.name = name;
}


public void run() {
	for (int i = 0; i < 10; i++) {
		System.out.println(name + "运行：" + i);
		try {

			Thread.sleep((int) (Math.random() * 10));
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

}

//第二种实现形式 public class thread_one extends Thread { private String name;

public thread_one(String name) {
	this.name = name;
}

public static void main(String args[]) {
	thread_one a1 = new thread_one("hu");
	thread_one a2 = new thread_one("mao");
	a1.start();
	a2.start();
	System.out.println(a1.getId());
	System.out.println(a1.getPriority());
	System.out.println(a1.isAlive());
	System.out.println(a1.toString());

}


public void run() {
	for (int i = 0; i < 10; i++) {
		System.out.println(name + "运行：" + i);
		try {

			sleep((int) (Math.random() * 10));
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

}

转载于:https://my.oschina.net/u/2511906/blog/3001965