java线程示例

需要开启线程 的方法继承线程类，并在run  中写逻辑

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public class Ant extends Thread{     Cake cake;     public Ant(String name,Cake cake){         this.cake = cake;         setName(name);       }     @Override     public void run(){         while (true){             int n = 2;             System.out.println(getName()+"吃"+n+"个蛋");             cake.lost(n);             System.out.println(getName()+"发现还剩"+cake.getSize() + "克");               try {                 sleep(1000);             } catch (InterruptedException e) {                 e.printStackTrace();             }import java.awt.*;   public class TestMain {     public static void main(String[] args) {         Cake cake = new Cake();         int size = 12;         cake.setSize(size);         System.out.println("蛋糕大小" + size +"克");         Ant antRed = new Ant("红蚂蚁",cake);         Ant antBlak = new Ant("默哥哥",cake);         antRed.start();         antBlak.start();     } }            if(cake.getSize() <=0){                 System.out.println(getName()+"也经进入死忙状态了");                 return;             }         }       } }

 

　　配置cake类的方法：这个类有一个大小的方法，和减数量的方法，用于线程来减，当减到时，减的方法不在运行

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public class Cake {     int size;     public void setSize(int n){         size =n;     }     public int getSize(){         return size;     };     public void lost(int m){         if((size - m) >= 0){             size = size -m;         }       }   }

　　主类编写运行代，注意主类开启是 用run  而是start()