passingparam.java

Java语言程序设计-源代码 和课程相对应的提供了一些用于学习理解的代码设计

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);
        }
}