Java开发网 - add问题。高手帮我看看怎么返回值

Topic: add问题。高手帮我看看怎么返回值

1.add问题。高手帮我看看怎么返回值

Posted by: gashi
Posted on: 2005-05-21 10:45

public class point{
private int x;
private int y;
public point(int px,int py){
this.x = px;
this.y = py;
}
public point(){
this.x=0;
this.y=0;
}
public int getX(){
return x;
}
public int getY(){
return y;
}
public String toString(){
return ("("+x+","+y+")");
}
public point add(point p){
希望算出2点坐标的和(this.x+p.getX(),this.y+p.getY())
？？？？？
}
}

2.Re:add问题。高手帮我看看怎么返回值 [Re: gashi]	Copy to clipboard
Posted by: why Posted on: 2005-05-21 10:54 > 希望算出2点坐标 ??? What are you talking about? return new Point(this.x + p.getX(), this.y + p.getY()); // by convention use uppercase for the first character of a class.

3.Re:add问题。高手帮我看看怎么返回值 [Re: gashi]	Copy to clipboard
Posted by: gashi Posted on: 2005-05-21 11:02 这样写之后，编译还是出很多错为什么阿

4.Re:add问题。高手帮我看看怎么返回值 [Re: gashi]	Copy to clipboard
Posted by: qizi Posted on: 2005-05-21 11:57 这个方法该是： public String toString(){ return ("("+String.valueOf(x)+","+String.valueOf(y)+")"); public point add(point p){ this.x=+p.getX(); this.y=+p.getY(); return this; } 希望行 Disable Smileys

5.Re:add问题。高手帮我看看怎么返回值 [Re: gashi]	Copy to clipboard
Posted by: qizi Posted on: 2005-05-21 11:57 晕，这个有字符变形！你把他复制下来看！

6.Re:add问题。高手帮我看看怎么返回值 [Re: gashi]	Copy to clipboard
Posted by: 8166680 Posted on: 2005-05-23 01:39 有点收获