java之多线程

public class Test1 extends Thread{
    private String name;
    public Test1(String name) {
        this.name=name;
    }
    public void run() {
        for(int i=0;i<10;i++) {
            System.out.println(name+"运行 i+"+i);
        }
    }
}

public class TestDemo {
    public static void main(String[] args) {
        Test1 t1=new Test1("A");
        Test1 t2=new Test1("B");
        t1.start();
        t2.start();
    }

}

run方式是写的方法，而start方法则是定在在jdk中

 

接口Runnable

public class Test2 implements Runnable{
    private String name;
    public Test2(String name) {
        this.name=name;
    }

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

}

public class Test2Demo {
    public static void main(String[] args){
        Test2 t1=new Test2("A");
        Test2 t2=new Test2("B");
        Thread d1=new Thread(t1);
        Thread d2=new Thread(t2);
        try {
            d1.start();
            d2.start();
        }catch(IllegalThreadStateException e) {
        e.printStackTrace();
        }
    }

}

这里要抛出一个异常，