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,原來是這樣";
}
public void testParameterTransfer02(TestParameterPassing tpp) {
tpp = new TestParameterPassing(2,"新的對象,形式參數換了一個地址,形式參數只是地址的拷貝,如果使用這個形參做操作那麼,原來的對象內容會改,但是這裏沒有");
}
public static void main(String[] args) {
TestParameterPassing tpp = new TestParameterPassing(1,"第一個名字");
tpp.testParameterTransfer01(tpp);
System.out.println(tpp.name);
tpp.testParameterTransfer02(tpp);
System.out.println(tpp.name);
}
}
//輸出結果
哦,原來是這樣
哦,原來是這樣