获取其他结构

package com.day0324_2;
import com.day0324_1.Person;
import org.junit.jupiter.api.Test;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
public class OtherTest {
    /*
    获取构造器
     */
    @Test
    public void test1(){
        Class clazz= Person.class;
        //获取当前运行时类中声明为public的构造器
        Constructor[] constructors = clazz.getConstructors();
        for (Constructor c :
                constructors) {
            System.out.println(c);
        }
        System.out.println();
        //获取当前运行时类中所有的构造器
        Constructor[] declaredConstructors = clazz.getDeclaredConstructors();
        for (Constructor c :
                declaredConstructors) {
            System.out.println(c);
        }
    }
    /*
    获取当前运行时类的父类
     */
    @Test
    public void test2(){
        Class clazz=Person.class;
        Class superclass = clazz.getSuperclass();
        System.out.println(superclass);
    }
    /*
       获取当前运行时类的带泛型的父类
    */
    @Test
    public void test3(){
        Class clazz=Person.class;
        Type genericSuperclass = clazz.getGenericSuperclass();
        System.out.println(genericSuperclass);
    }
     /*
       获取当前运行时类的带泛型的父类的泛型
       代码： 逻辑代码 VS 功能代码
    */
    @Test
     public void test4(){
         Class clazz=Person.class;
         Type genericSuperclass = clazz.getGenericSuperclass();
         ParameterizedType paramType= (ParameterizedType) genericSuperclass;
         //获取泛型类型
         Type[] actualTypeArguments = paramType.getActualTypeArguments();
//         System.out.println(actualTypeArguments[0].getTypeName());
         System.out.println(((Class)actualTypeArguments[0]).getName());
     }
     /*
     获取运行时类实现的接口
      */
    @Test
    public void test5(){
        Class clazz=Person.class;
        Class[] interfaces = clazz.getInterfaces();
        for (Class c :
                interfaces) {
            System.out.println(c);
        }
        System.out.println();
        //获取运行时类的父类的接口
        Class[] interfaces1 = clazz.getSuperclass().getInterfaces();
        for (Class c :
                interfaces1) {
            System.out.println(c);
        }
    }
    /*
    获取运行时类所在的包
     */
    @Test
    public void test6(){
        Class clazz=Person.class;
        Package pack = clazz.getPackage();
        System.out.println(pack);
    }
    /*
        获取运行时类声明的注解
    */
    @Test
    public void test7(){
        Class clazz=Person.class;
        Annotation[] annotations = clazz.getAnnotations();
        for (Annotation annos:
                annotations) {
            System.out.println(annos);
        }
    }
}