passvalue2.java

用java编写的一些初级代码

public class PassValue2
{
    public static void changeage(int p)
    {
	p=3;
    }
    public static void main (String [] args)
    {
	PassValue2 p1= new PassValue2();
	int x=5;
	PassValue2.changeage(x);
	System.out.println(x);
    }
}