object6.java

该原代码为＜Java编程基础、应用与实例＞的附盘代码

public class Object6{
  static void swap(int a, int b){
  	int temp=a;
  	a=b;
  	b=temp;
  }
  public static void main(String[] args){
    int x=10, y=20;
    swap(x,y);
    System.out.println(x+" "+y);
  } 
}