package J20250805.demo04; import java.lang.reflect.Constructor; import java.util.ArrayList; /** * @author WanJl * @version 1.0 * @title ClassTest * @description * @create 2025/8/5 */ public class ClassTest01 { public static void main(String[] args) throws ClassNotFoundException { //1、类名.class属性 Class stringClass = String.class; //2、对象名.getClass()方法 Class arrayListClass = new ArrayList<>().getClass(); //3、Class.forName(全限定类名)方法 Class hashSetClass = Class.forName("java.util.HashSet"); } }