多线程

课堂代码

package kt;
//继承Thread类
public class L1 extends Thread{
    int count = 0;
    public L1(String name){
        super(name);
    }
    public void run(){
        for(int i = 0;i < 5;i++){
            count++;
            System.out.println(count + ":" + this.getName());
        }
    }
    public static void main(String[] args){
            L1 p = new L1("线程1");
            int count = 0;
            p.start();
            for(int i = 0;i < 5 ; i++){
                count ++;
                System.out.println(count + ":main");
            }
    }
}

package kt;
//继承类
public class L2 extends Thread{
    int count = 0;
    static int c = 0;
    public L2(String name){
        super(name);
    }
    public void run(){
        for(int i = 0;i < 5;i++){
            c++;
            System.out.println(
                    c + ":"
            + Thread.currentThread() + ":" 
            + this.getName());
        }
    }
    public static void main(String[] args){
        L2 p1 = new L2("线程1");
        L2 p2 = new L2("线程2");
        p1.start();
        p2.start();
    }
}

package kt;
//接口类
public class L3 implements Runnable{
    int count = 1;
    int number;
    public L3(int i){
        number = i;
        System.out.println("创建线程"+number);    
    }
public void run(){
    while(true){
        System.out.println("线程"+number+"计数"+count);
        if(++count == 3){
            return;
        }
    }
}
    public static void main(String args[]){
        for(int i = 0;i<3;i++){
            Thread p = new Thread(new L3(i+1));
            p.start();
        }
    }
}

package kt;
/*
 * Runnable接口类
 * */
public class L4 implements Runnable{
    int n;
    public void run(){
        for(int i = 1;i < n;i++){
            System.out.println(i + " ");
        }
    }
    public static void main(String args[]){
        L4 my = new L4();
        my.n = 10;
        Thread p1 = new Thread(my);
        p1.start();
    }
}