java注解_JDK预定义注解

@Override

@SuppressWarnings

@Deprecated

 

package cn;

import java.util.Date;

public class AnnoatcionDemo2 {

    @Override
    public String toString() {
        return super.toString();
    }

    @Deprecated
    public void show(){

    }

    @SuppressWarnings("all")
    public void show2(){

    }

    public void demo(){
        show();
        Date d = new Date();
    }
}