Java反射获取Class的三种方式

package com.sou.reflection.classpkg;

import org.junit.Test;

import java.lang.reflect.Method;

/**
 * 反射获取Class的三种方式
 * 1）Class.forName()
 * 2) obj.getClass
 * 3) class.class
 */
public class ReflectionApp {

    //Class.forName()
    @Test
    public void test01() throws Exception {
        Class<?> clazz = Class.forName("java.lang.Object");
        //获取所有的方法
        Method[] methods = clazz.getDeclaredMethods();
        for (Method method : methods) {
            System.out.println(method);
        }

        System.out.println("---------------");

        //获取标识为Public的方法
        Method[] methods1 = clazz.getMethods();
        for (Method method : methods1) {
            System.out.println(method);
        }
    }

    //obj.getClass
    @Test
    public void test02() {
        String name = "allen";
        Class<?> clazz = name.getClass();
        Method[] methods = clazz.getMethods();
        for (Method method : methods) {
            System.out.println(method);
        }
    }


    //class.class
    @Test
    public void test03() {
        System.out.println(Integer.class);
        System.out.println(Integer.TYPE);
    }
}