Question

1. Write a class called Rectangle that represents a rectangular two-dimensional region. Your Rectangle objects should have the following fields and methods: int width, int height Where width and height are the dimensions of the rectangle. Write accessor methods (i.e. getWidth(), getHeight()) that retrieve the values stored in the fields above. And mutator methods (i.e. setWidthl), setHeight() ) that change the field's values. Finally create a method called getAreal) that returns the area of the rectangle. Like we did in lecture! Write a demo program that creates a Rectangle object and asks the user for the values of width and height and assigns them to the objects fields. Then print out the values to the screen along with the area.

JAVA

Answer 1

import java.util.Scanner;

class RectangleTest {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        Rectangle rectangle = new Rectangle();
        System.out.print("Enter width of rectangle: ");
        rectangle.setWidth(in.nextInt());
        System.out.print("Enter height of rectangle: ");
        rectangle.setHeight(in.nextInt());
        System.out.println("Width: " + rectangle.getWidth());
        System.out.println("Height: " + rectangle.getHeight());
        System.out.println("Area: " + rectangle.getArea());
    }
}

class Rectangle {

    private int width, height;

    public int getWidth() {
        return width;
    }

    public int getHeight() {
        return height;
    }

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

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

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

Enter width of rectangle: 4 Enter height of rectangle: 7 Width: 4 Height: 7 Area: 28 Process finished with exit code 0