关于注解的使用

package com.liming.study;


import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target(value = {ElementType.METHOD,ElementType.TYPE})
@Retention(value = RetentionPolicy.RUNTIME)

public @interface MyAnnotation {    //自定义注解

    String value() default "";
    int id() default 0;
    String[] list() default {"胖虎"};

}

package com.liming.study;

import java.util.ArrayList;
import java.util.List;

public class AnnotationTest {
    public static void main(String[] args){
        System.err.println("Hello Annotation");

        test();
    }

  @MyAnnotation(value="Hello",id=123,list = {"大雄","小夫"})
    private static void test(){
        System.err.println("Test");
       // List list = new ArrayList();
    }

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