Which types have Class objects

Which types have Class objects

• Class: external class, member (member internal class, static internal class), local internal class, anonymous internal class.
• interface: interface
• []: array
• enum: enum
• annotation: annotation @interface
• primitive type: primitive data type
• void

package Reflection;

import java.util.Enumeration;

//所有类型的Class
public class Test03 {
    
    
    public static void main(String[] args) {
    
    
        //类
        Class c1 = Object.class;
        //接口
        Class c2 = Comparable.class;
        //一维数组
        Class c3 = String[].class;
        //二维数组
        Class c4 = int[][].class;
        //注解
        Class c5 = Override.class;
        //枚举
        Class c6 = Enumeration.class;
        //基本数据类型
        Class c7 = Integer.class;
        //void
        Class c8 = void.class;
        //class
        Class c9 = Class.class;


        System.out.println(c1);
        System.out.println(c2);
        System.out.println(c3);
        System.out.println(c4);
        System.out.println(c5);
        System.out.println(c6);
        System.out.println(c7);
        System.out.println(c8);
        System.out.println(c9);

        //只要元素类型与维度一样，就是同一个class
        int[] a =new int[10];
        int[] b =new int[100];

        System.out.println(a.getClass().hashCode());
        System.out.println(b.getClass().hashCode());

    }
}