passtest.java

java学习理解的素材 可以更好的理解java运行过程

import java.io.*;
public class PassTest{
	float ptValue;
	public static void main(String args[])
	{
	int val;
	PassTest pt=new PassTest();
	val=11;
	System.out.println("Original int Value is:"+val);
	pt.changedlnt(val);
	System.out.println(" int Value after Change is:"+val);
	pt.ptValue=101f;
	System.out.println("Original ptValue is:"+pt.ptValue);
	pt.changeObjValue(pt);
	System.out.println("ptValue after Change is :"+pt.ptValue );
	}
	public void changedlnt(int value){value=55;}
    public void changeObjValue (PassTest ref){ref.ptValue=99f;}
}