Question

java 基础程序编写 两点之间的距离

面向对象哦

Answer 1

题目是要求写出类Point吗？是的话代码如下：
public class Point{
private int x;
private int y;

public Point(int x,int y){
this.x = x;
this.y = y;
}

public double ppdistance(Point p){
return Math.sqrt(Math.pow(x - p.getX(),2)+Math.pow(y - p.getY(),2));
}

public Point move(int x,int y){
return new Point(this.x + x,this.y + y);
}

public String toString(){
return "("+x+","+y+")";
}

public int getX(){
return x;
}

public int getY(){
return y;
}
}

btw:类名一般是首字母大写。出题人不严谨！

Answer 2

是这个意思吗？

private double getDistance(int x1,int y1,int x2,int y2){
return Math.sqrt((x2-x1)*(x2-x1) - (y2-y1)*(y2-y1));
}

Answer 3

你上面不也是写好了程序吗