java 中实现多线程的两种方法

package cn.itcast.heima2;

/**
* java 中实现多线程的两种方法
* 1：继承Thread线程类，重写run方法。
* 2：实现Runnable接口，重写run方法，并将此Runnable对象放入新建线程。
*
* 注意：
*    Thread 类源码中
*    run方法是判断当前线程中Runnable对象是否为null
*    不为空才启动此对象线程。
*    否则不处理。
*   
*   
*     /* What will be run. */
    //private Runnable target;
/*
    @Override
  public void run() {
        if (target != null) {
            target.run();
        }
    }*/
   

public class TraditionalThread {

/**
* @param args
*/
public static void main(String[] args) {

Thread thread = new Thread(){
@Override
public void run() {
while(true){
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("1:" + Thread.currentThread().getName());
System.out.println("2:" + this.getName());
}
}
};
thread.start();


Thread thread2 = new Thread(new Runnable(){
@Override
public void run() {
while(true){
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("1:" + Thread.currentThread().getName());

}

}
});
thread2.start();


new Thread(
new Runnable(){
public void run() {
while(true){
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("runnable :" + Thread.currentThread().getName());

}
}
}
){
public void run() {
while(true){
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("thread :" + Thread.currentThread().getName());

}
}
}.start();


}

}