Java 的多线程

多线程的实现方法之一，用不同的类来实现接口Runnable，在类中重写run()方法

public class TaskClassDemo {

    public static void main(String[] args) {
        Runnable p1 = new PrintChar('a',100);//打印字母a一百次
        Runnable p2 = new PrintChar('b',100);//打印字母b一百次
        Runnable p3 = new PrintNUm(100);//打印1到100

        Thread thread1 = new Thread(p1);
        Thread thread2 = new Thread(p2);
        Thread thread3 = new Thread(p3);

        thread1.start();
        thread2.start();
        thread3.start();
    }
}


class PrintChar implements Runnable{
    private char charToPrint;
    private int times;
    public PrintChar(char charToPrint,int times)
    {
        this.charToPrint = charToPrint;//可以使用this关键字的方法
        this.times = times;
    }

    public void run()
    {
        for(int i=0;i<100;i++)
        {
            System.out.println(charToPrint);
        }
    }
}

class PrintNUm implements Runnable{
    private int lastNUm;
    public PrintNUm (int lastNUm)
    {
        this.lastNUm = lastNUm;
    }

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