passobject.java

java编程思想的部分实现

class Letter
{
	char c;
}

public class Passobject
{
	static void f(Letter y)
	{
		y.c='z';
	}
	public static void main(String[] args)
	{
		Letter x=new Letter();
		x.c='a';
		System.out.println("1:x.c:"+x.c);
		f(x);
		System.out.println("2:x.c:"+x.c);
	}
}