[JavaSE]->{注記と反射04}-->カスタム注記

カスタム注記

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

/**
 * @ClassName: Test3
 * @Description: // 
 * @Author: sniper-zx
 * @Version: 1.0
 **/
// 
public class Test3 {
    //  /  
    @DiyAnnotation2(age = 19,name = "Tokm", id = 1,schools = {" "})
    public void test1(){

    }
    @DiyAnnotation3(value = "Hi,nice to meet you!")
    public void test2(){

    }

}

// , {}
@Target(value = {ElementType.METHOD})
// 
@Retention(value = RetentionPolicy.RUNTIME)
@interface DiyAnnotation2{
//        ( ) 
    String name() default "";
    int age() default 19;
    int id() default  -1;//String indexOf("abc") -1 ,  , 
    String[] schools() default {" "," "," "};
}

@Target(value = {ElementType.METHOD})
@Retention(value = RetentionPolicy.RUNTIME)
@interface DiyAnnotation3{
//     ， value 
    String value();
}