package top.qaqaq.java.P649;

import java.io.Serializable;

/**
 * @author RichieZhang
 * @create 2022-11-01 下午 7:52
 */
public class Creature<T> implements Serializable {

    private char gender;
    public double weight;

    private void breath(){
        System.out.println("生物呼吸");
    }

    public void eat(){
        System.out.println("生物吃东西");
    }
}

package top.qaqaq.java.P649;

/**
 * @author RichieZhang
 * @create 2022-11-01 下午 7:52
 */

@MyAnnotation(value = "hi")
public class Person extends Creature<String> implements Comparable<String>,MyInterface{

    private String name;
    int age;
    public int id;

    public Person(){

    }

    @MyAnnotation(value = "abc")
    private Person(String name){
        this.name = name;
    }

    Person(String name, int age){
        this.name = name;
        this.age = age;
    }

    @MyAnnotation
    private String show(String nation){
        System.out.println("我的国籍是：" + nation);
        return nation;
    }

    public String display(String interests,int age) throws NullPointerException,ClassCastException{
        return interests + age;
    }

    @Override
    public int compareTo(String o) {
        return 0;
    }

    @Override
    public void info() {
        System.out.println("我是一个人");
    }
}

package top.qaqaq.java.P649;

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

import static java.lang.annotation.ElementType.*;

/**
 * @author RichieZhang
 * @create 2022-11-01 下午 8:02
 */
@Target({TYPE, FIELD, METHOD, PARAMETER, CONSTRUCTOR, LOCAL_VARIABLE, MODULE})
@Retention(RetentionPolicy.RUNTIME)
public @interface MyAnnotation {
    String value() default "hello";
}

package top.qaqaq.java.P649;

/**
 * @author RichieZhang
 * @create 2022-11-01 下午 7:55
 */
public interface MyInterface {

    void info();
}