ADT Point

class Point {
    float x;
    float y;
}

public class ADT_KelompokVandiPoint {
    static Point makePoint(float x, float y){
        Point A = new Point();
        A.x = x;
        A.y = y;
        return A;
    }

    static Point bacaPoint(){
        Point A = new Point();
        A.x = 9.3f;
        A.y = 3.6f;
        return A;
    }

    static float getAbsis(Point A){
        return A.x;
    }

    static float getOrdinat(Point A){
        return A.y;
    }

    static void setAbsis(Point A, float x){
        A.x = x;
    }

    static void setOrdinat(Point A, float y){
        A.y = y;
    }

    static void tulisPoint(Point A){
        System.out.println("Point ("+A.x+","+A.y+") dengan x = "+A.x+" dan y = "+A.y);
    }

    static Point geserKanan(Point A, float dx){
        A.x += dx;
        return A;
    }

    static Point geserAtas(Point A, float dy){
        A.y += dy;
        return A;
    }

    static Point cerminX(Point A){
        A.y = -A.y;
        return A;
    }

    static Point cerminY(Point A){
        A.x = -A.x;
        return A;
    }

    public static void main(String[] args){
        Point P1 = makePoint(4,6);
        Point P2 = bacaPoint();
        tulisPoint(P1);
        tulisPoint(P2);
        float x = getAbsis(P1);
        float y = getOrdinat(P1);
        setAbsis(P1,4);
        setOrdinat(P1,6);
        tulisPoint(P1);
        P1= geserKanan(P1,5);
        tulisPoint(P1);
        P1 = geserAtas(P1,7);
        tulisPoint(P1);
        P1 = cerminX(P1);
        tulisPoint(P1);
        P1 = cerminY(P1);
        tulisPoint(P1);

    }
}

HASIL :

Point (4.0,6.0) dengan x = 4.0 dan y = 6.0
Point (9.3,3.6) dengan x = 9.3 dan y = 3.6
Point (4.0,6.0) dengan x = 4.0 dan y = 6.0
Point (9.0,6.0) dengan x = 9.0 dan y = 6.0
Point (9.0,13.0) dengan x = 9.0 dan y = 13.0
Point (9.0,-13.0) dengan x = 9.0 dan y = -13.0
Point (-9.0,-13.0) dengan x = -9.0 dan y = -13.0