Java實現在不同線程中運行的代碼實例詳解
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start()方法開始為一個線程分配CPU時間，這導致對run()方法的調用。
代碼1
package Threads;
/**
* Created by Frank
*/
public class ThreadsDemo1 extends Thread {private String msg;
private int count;
public ThreadsDemo1(final String msg, int n) {this.msg = msg;
count = n;
setName(msg + " runner Thread");
}
public void run() {
while (count-- > 0) {
System.out.println(msg);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
return;
}
}
System.out.println(msg + " all done.");
}
public static void main(String[] args) {
new ThreadsDemo1("Hello from X", 10).start();new ThreadsDemo1("Hello from Y", 15).start();}
}
代碼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) {
this.msg = m;
count = n;
t = new Thread(this);
t.setName(msg + "runner Thread");
t.start();
}
public void run() {
while (count-- > 0) {
System.out.println(msg);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
return;
}
}
System.out.println(msg + " all done.");
}
}
代碼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) {this.count = n;
Thread t = new Thread(new Runnable() {
public void run() {
while (count-- > 0) {
System.out.println(msg);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
return;
}
}
System.out.println(msg + " all done.");
}
});
t.setName(msg + " runner Thread");
t.start();
}
}
eclipse運行結果如下：
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