자바 프로그래밍 : 한 원이 다른원에 포함되는가?
조회수 1434회
- Point2D.java
public class Point2D { private double x; private double y;
public double getX() { return x; } public double getY() { return y; }
public void move(double dx, double dy) { x += dx; y += dy; }
public double distance(double x, double y) { double dx = this.x - x; double dy = this.y - y; return Math.sqrt(dx*dx + dy*dy); }
public double distance(Point2D p) { return distance(p.x, p.y); }
public Point2D() { this.x = 0; this.y = 0; }
public Point2D(double x, double y) { this.x = x; this.y = y; }
}
Circle2D.java
public class Point2D { private double x; private double y;
public double getX()
{
return x;
}
public double getY()
{
return y;
}
public void move(double dx, double dy)
{
x += dx;
y += dy;
}
public double distance(double x, double y)
{
double dx = this.x - x;
double dy = this.y - y;
return Math.sqrt(dx*dx + dy*dy);
}
public double distance(Point2D p)
{
return distance(p.x, p.y);
}
public Point2D()
{
this.x = 0;
this.y = 0;
}
public Point2D(double x, double y)
{
this.x = x;
this.y = y;
}
}
Test.java
public class Test { public static void main(String [] args) { Point2D p = new Point2D(10,10); Circle2D c1 = new Circle2D(p,1), c2 = new Circle2D(p,2); System.out.println(c2.contains(c1)); c2.move(10,10); System.out.println(c2.contains(c1)); } }
여기서 Test.java 를 실행시키면 분명 true false 라는 결과가 나와야 하는데 true true 결과가 계속 나옵니다 ㅠㅠ
어디서 잘못된 걸까요...?
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