Question

java 编写一个point类,计算两个point实例之间的距离

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Answer 1

public class Point
{
private int x;
private int y;
public Point(){x=0;y=0;}
public Point(int x, int y){this.x = x;this.y = y;}
public void setX(int x){this.x = x;}
public void setY(int y){this.y = y;}
public int getX(){return x;}
public int getY(){return y;}
public double Distance(Point p)
{
int diffx = p.getX() - this.x;
int diffy = p.getY() - this.y;
return Math.Sqrt(diffx * diffx + diffy * diffy);
}
}