Question

我正在做一个关于在物体中思考的练习。我完成了编写没有错误的代码，但是当我运行它时，我得到的输出不正确。这就是我得到的：

面积：26.950000000000003

周长：20.8

包含：false

包含：true

我做错了什么？有人可以告诉我哪里出错了吗？！ - 我被困在这里 -

有我的代码：

    public class Excercise10_13_1 {

        public static void main(String[] args) {

            MyRectangle2D r1 = new MyRectangle2D(2, 2, 5.5, 4.9);

            System.out.println("area: " + r1.getArea());
            System.out.println("perimeter: " + r1.getPerimeter());
            System.out.println("contains: " + r1.contains(3, 3));
            System.out.println("contains: "
                    + r1.contains(new MyRectangle2D(4, 5, 10.5, 3.2)));
            System.out.println("contains: "
                    + r1.overlaps(new MyRectangle2D(3, 5, 2.3, 5.4)));

        }
    }

    class MyRectangle2D {
        private double x, y;
        private double width, height;

        MyRectangle2D() {
            x = 0;
            y = 0;
            width = 1;
            height = 1;

        }

        MyRectangle2D(double x, double y, double width, double height) {
            this.x = x;
            this.y = y;
            this.width = width;
            this.height = height;
        }

        public double getX() {
            return x;
        }

        public double getY() {
            return y;
        }

        public void setX(double x) {
            this.x = x;
        }

        public void setY(double y) {
            this.y = y;
        }

        public double getWidth() {
            return width;
        }

        public double getHeight() {
            return height;
        }

        public void setWidth(double width) {
            this.width = width;
        }

        public void setHeight(double height) {
            this.height = height;
        }

        public double getArea() {
            return width * height;
        }

        public double getPerimeter() {
            return 2 * (width + height);
        }

        public boolean contains(double x, double y) {
            return (x >= this.x && x <= (this.x + width) && y >= this.y && y <= (this.y + height)) ? false
                    : true;
        }

        public boolean contains(MyRectangle2D r) {
            return Math.abs(2 * (r.getX() - this.x) - height) > height
                    || Math.abs(2 * (r.getY() - this.y)) > width;
        }

        public boolean overlaps(MyRectangle2D r) {
            return (Math.abs(2 * (r.getX() - this.x)) >= height || Math.abs(2 * (r
                    .getY() - this.y)) >= width);
        }

}

为什么myRectangle2D没有正确编译？

0 个答案: