Java on the object as an argument (value of the address of the copy)

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);
	}
	
}

// output
Oh, is that so
Oh, is that so