1.创建方式一：继承Thread类来实现
package day04;public class thread_learn {//main方法是主线程public static void main(String[] args) {//4.创建线程对象MyThread t1=new MyThread();//5.启动线程,还是调run方法执行的t1.start();for (int i = 0; i < 5; i++) {System.out.println("主线程"+i);}}
}
//1.继承Tread类
class MyThread extends Thread{@Override//2.重写Thread类的run方法public void run() {//3.在run方法中编写线程执行的代码for (int i = 0; i < 5; i++) {System.out.println("子线程"+i);}}
}
