/** * @program JavaBooks * @description: 引用计数的循环引用问题 * @author: mf * @create: 2020/01/19 12:53 */ public class T2 { public static void main(String[] args) { Object object1 = new Object(); Object object2 = new Object(); object1 = object2; // obj1 引用obj2 object2 = object1; // obj2 引用obj1 循环引用 object1 = null; object2 = null; } }