Point类的Java代码如下:

public class Point {
    private double x;
    private double y;

    public Point(double x, double y) {
        if (x > 0 && x <= 200 && y > 0 && y <= 200) {
            this.x = x;
            this.y = y;
        } else {
            System.out.println("Wrong Format");
        }
    }

    public double getX() {
        return x;
    }

    public void setX(double x) {
        if (x > 0 && x <= 200) {
            this.x = x;
        } else {
            System.out.println("Wrong Format");
        }
    }

    public double getY() {
        return y;
    }

    public void setY(double y) {
        if (y > 0 && y <= 200) {
            this.y = y;
        } else {
            System.out.println("Wrong Format");
        }
    }

    public void display() {
        System.out.printf("(%.2f,%.2f)\n", x, y);
    }
}

Line类的Java代码如下:

public class Line {
    private Point point1;
    private Point point2;
    private String color;

    public Line(Point point1, Point point2, String color) {
        this.point1 = point1;
        this.point2 = point2;
        this.color = color;
    }

    public Point getPoint1() {
        return point1;
    }

    public void setPoint1(Point point1) {
        this.point1 = point1;
    }

    public Point getPoint2() {
        return point2;
    }

    public void setPoint2(Point point2) {
        this.point2 = point2;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public double getDistance() {
        double dx = point2.getX() - point1.getX();
        double dy = point2.getY() - point1.getY();
        return Math.sqrt(dx * dx + dy * dy);
    }

    public void display() {
        System.out.println("The line's color is:" + color);
        System.out.println("The line's begin point's Coordinate is:");
        point1.display();
        System.out.println("The line's end point's Coordinate is:");
        point2.display();
        System.out.println("The line's length is:" + String.format("%.2f", getDistance()));
    }
}
``
设计一个类表示平面直角坐标系上的点Point私有属性分别为横坐标x与纵坐标y数据类型均为实型数除构造方法以及属性的getter与setter方法外定义一个用于显示信息的方法display用来输出该坐标点的坐标信息格式如下:xy数值保留两位小数。为简化题目其中坐标点的取值范围设定为0200。若输入有误系统则直接输出Wrong Format设计一个类表示平面直角坐标系上的线Line私有属性除了标识线段

原文地址: https://www.cveoy.top/t/topic/eGkX 著作权归作者所有。请勿转载和采集!

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