1.创建线程
在Java中创建线程有两种方法：使用Thread类和使用Runnable接口。在使用Runnable接口时需要建立一个Thread实例。因此，无论是通过Thread类还是Runnable接口建立线程，都必须建立Thread类或它的子类的实例。Thread构造函数：
- public Thread( );
- public Thread(Runnable target);
- public Thread(String name);
- public Thread(Runnable target, String name);
- public Thread(ThreadGroup group, Runnable target);
- public Thread(ThreadGroup group, String name);
- public Thread(ThreadGroup group, Runnable target, String name);
- public Thread(ThreadGroup group, Runnable target, String name, long stackSize);
方法一：继承Thread类覆盖run方法
代码如下:
public class ThreadDemo1 {
public static void main(String[] args){
Demo d = new Demo();
d.start();
for(int i=0;i