Java实现在不同线程中运行的代码实例详解

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　　start()方法开始为一个线程分配CPU时间，这导致对run()方法的调用。

代码1

package Threads;

/**

* Created by Frank

*/

public class ThreadsDemo1 extends Thread {private String msg;

private int count;

public ThreadsDemo1(final String msg, int n) { = msg;

count = n;

setName(msg + " runner Thread");

}

public void run() {

while (count-- > 0) {

tln(msg);

try {

p(100);

} catch (InterruptedException e) {

return;

}

}

tln(msg + " all done.");

}

public static void main(String[] args) {

new ThreadsDemo1("Hello from X", 10)t();new ThreadsDemo1("Hello from Y", 15)t();}

}

代码2：

package Threads;

/**

* Created by Frank

*/

public class ThreadsDemo2 implements Runnable {private String msg;

private Thread t;

private int count;

public static void main(String[] args) {

new ThreadsDemo2("Hello from X", 10);

new ThreadsDemo2("Hello from Y", 15);

}

public ThreadsDemo2(String m, int n) {

= m;

count = n;

t = new Thread(this);

ame(msg + "runner Thread");

t();

}

public void run() {

while (count-- > 0) {

tln(msg);

try {

p(100);

} catch (InterruptedException e) {

return;

}

}

tln(msg + " all done.");

}

}

代码3：

package Threads;

/**

* Created by Frank

*/

public class ThreadsDemo3 {

private int count;

public static void main(String[] args) {

new ThreadsDemo3("Hello from X", 10);

new ThreadsDemo3("Hello from Y", 15);

}

public ThreadsDemo3(final String msg, int n) {t = n;

Thread t = new Thread(new Runnable() {

public void run() {

while (count-- > 0) {

tln(msg);

try {

p(100);

} catch (InterruptedException e) {

return;

}

}

tln(msg + " all done.");

}

});

ame(msg + " runner Thread");

t();

}

}

　　eclipse运行结果如下：