java对象引用

//栈内存的引用可以改变此栈内存所指向的堆的内容class Person{String name;int age;public void tell(){System.out.println("姓名:" + name + ",年龄:" + age);}}public class test{public static void main(String srgs[]){Person per1 = new Person();per1.name = "张三";per1.age = 21;Person per2 = per1;per2.name = "李四";per1.tell();int a = 10;int b = a;a = 11;System.out.println(b);double c = 10.01;double d = c;c = 10.02;System.out.println(d);}}/*运行结果：姓名:李四,年龄:211010.01*/