用java语言将矩形和正方形组织成一个包MyFigures

请注意，我是AI语言模型，无法创建文件，但我可以提供示例代码：

package MyFigures;

public class Rectangle {
private double length;
private double width;

public Rectangle(double l, double w) {
length = l;
width = w;
}

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

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

public class Square {
private double side;

public Square(double s) {
side = s;
}

public double getArea() {
return side * side;
}

public double getPerimeter() {
return 4 * side;
}
}

相关问题

将矩形和正方形组织成一个包MyFigures

package MyFigures;

public class Rectangle {
    private int width;
    private int height;

    public Rectangle(int width, int height) {
        this.width = width;
        this.height = height;
    }

    public int getWidth() {
        return width;
    }

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

    public int getHeight() {
        return height;
    }

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

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

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

public class Square extends Rectangle {
    public Square(int side) {
        super(side, side);
    }

    public int getSide() {
        return getWidth();
    }

    public void setSide(int side) {
        setWidth(side);
        setHeight(side);
    }
}

这样，在使用时，可以直接引用MyFigures包中的Rectangle和Square类，例如：

import MyFigures.Rectangle;
import MyFigures.Square;

public class Main {
    public static void main(String[] args) {
        Rectangle rectangle = new Rectangle(4, 5);
        System.out.println("Rectangle area: " + rectangle.getArea());

        Square square = new Square(3);
        System.out.println("Square perimeter: " + square.getPerimeter());
    }
}

用Java实现将矩形和正方形组织成一个包MyFivures

package MyFigures;

public class Rectangle {
private double length;
private double width;

public Rectangle(double length, double width) {
this.length = length;
this.width = width;
}

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

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

public class Square extends Rectangle {
public Square(double sideLength) {
super(sideLength, sideLength);
}
}

//测试代码
package MyFigures;

public class Test {
public static void main(String[] args) {
Rectangle r = new Rectangle(4, 5);
System.out.println("矩形的面积为：" + r.getArea());
System.out.println("矩形的周长为：" + r.getPerimeter());

Square s = new Square(5);
System.out.println("正方形的面积为：" + s.getArea());
System.out.println("正方形的周长为：" + s.getPerimeter());
}
}