passingparam.java

来自「《Java语言程序设计》源代码 很好的JAVA入门的好的代码」· Java 代码 · 共 17 行

public class PassingParam{ 
static class OneObject{
	  public String Y="a";
}
static void changeParam(int X,OneObject object1){
	  X=9;
	  object1.Y="H";
}
        public static void main(String args[]){
       	   OneObject obj1=new OneObject();
    	   int a=10;
    	   System.out.println("Before:a="+a+" ,obj1.Y="+obj1.Y);
    	   changeParam(a,obj1);
    	   System.out.println("After:  a="+a+" ,obj1.Y="+obj1.Y);
        }
}