class B{int x=100,y=200; ?//變量類型為整數(shù)類型public void setX(int x){??x=x;} public void setY(int y){?this.y=y;}public int getXYSum(){return x+y;}}public class A{?public static void main(String args[]){??B b=new B();??b.setX(-100);??b.setY(-200);System.out.println(“sum=”+b.getXYSum());}}
這段程序怎么運(yùn)行？
qq_無(wú)名天空_0
2016-05-15 18:26:52
