package com.company.fourthchapter;
public class TestParameterPassing {
int id;
String name;
public TestParameterPassing(int id, String name) {
this.id = id;
this.name = name;
};
public void testParameterTransfer01(TestParameterPassing tpp) {
tpp.name = "哦,原来是这样";
}
public void testParameterTransfer02(TestParameterPassing tpp) {
tpp = new TestParameterPassing(2,"新的对象,形式参数换了一个地址,形式参数只是地址的拷贝,如果使用这个形参做操作那么,原来的对象内容会改,但是这里没有");
}
public static void main(String[] args) {
TestParameterPassing tpp = new TestParameterPassing(1,"第一个名字");
tpp.testParameterTransfer01(tpp);
System.out.println(tpp.name);
tpp.testParameterTransfer02(tpp);
System.out.println(tpp.name);
}
}
//输出结果
哦,原来是这样
哦,原来是这样