1.java单线程的实现
public class SingletonThread {
@SuppressWarnings("static-access")
public static void main(String[] args) {
Thread t =Thread.currentThread();
t.setName("单例线程");
System.out.println(t.getName()+" 正在执行");
for(int i=0;i<2000;i++){
System.out.println("线程正在休眠："+i);
try {
t.sleep(500);
} catch (InterruptedException e) {
System.out.println("线程出现错误了！。");
}
}
}
}
2.java多线程的实现
①继承Thread类。并重写run方法
public class ThreadImpl {
public static void main(String[] args) {
Thread t1=new ThreadTest("t1", 200);
Thread t2=new ThreadTest("t2", 100);
Thread t3=new ThreadTest("t3", 300);
t1.start();
t2.start();
t3.start();
}
}
class ThreadTest extends Thread{
private String name;
private int ms;
public ThreadTest(String name, int ms) {
this.name = name;
this.ms = ms;
}
public void run() {
try {
sleep(ms);
} catch (InterruptedException e) {
System.out.println("线程执行中断异常");
}
System.out.println("名字叫"+name+"的线程開始休眠"+ms+"毫秒");
}
}
结果：
名字叫t2的线程開始休眠100毫秒
名字叫t1的线程開始休眠200毫秒
名字叫t3的线程開始休眠300毫秒
②实现runnable接口，重写run方法
public class RunnableImpl {
public static void main(String[] args) {
RunnableTest r1=new RunnableTest();
Thread t=new Thread(r1);
t.start();
}
}
class RunnableTest implements Runnable{
@Override
public void run() {
// TODO Auto-generated method stub
}
}