Question

JAVA

Modify the following code to:

// Create a class called box.
// Create three rectangles.
// Your working constructor is going to take length, width, and height.
// Create an overload constructor that will take the length and width and a height of 1
// You will call this and pass it the length and the width
// and the third parameter would be 1.
// Then create a default constructor which sets everything to 1.

HERE IS THE CODE THAT I HAVE:

// Rectangle.java

public class Rectangle
{
private int length;
private int width;
  
public Rectangle(int length, int width)
{
this.setRectangle(length, width);
}
public Rectangle()
{
this(1,1);
}
public void setRectangle(int length, int width)
{
this.length = length;
this.width = width;
}
public int area()
{
return this.length * this.width;
}
}

// MAIN.java

package console;

import java.awt.Rectangle;
import java.util.Scanner;

public class Console
{
public static void main (String[] args)
{
Scanner in = new Scanner(System.in);
  
Rectangle r1 = new Rectangle(4,3);
Rectangle r2 = new Rectangle(6,5);
  
System.out.println("The area of r1 is " + r1.area());
System.out.println("The area of r2 is " + r2.area());
  
  
}
}

Answer 1

Rectangle.java

public class Rectangle {
private int length, width, height;
  
public Rectangle()
{
this.length = 1;
this.width = 1;
this.height = 1;
}
  
public Rectangle(int length, int width)
{
this.length = length;
this.width = width;
this.height = 1;
}

public int getLength() {
return length;
}

public int getWidth() {
return width;
}

public int getHeight() {
return height;
}
  
public int area()
{
return (getLength() * getWidth() * getHeight());
}
  
@Override
public String toString()
{
return ("Length: " + getLength() + " units, Width: " + getWidth()
+ " units, Height: " + getHeight() + " unit, Area: " + area() + " sq. units");
}
}

Box.java (Main class)

import java.util.Scanner;

public class Box {
  
public static void main(String[]args)
{
Scanner sc = new Scanner(System.in);
  
System.out.println("RECTANGLE 1:\n------------");
System.out.print("Enter length: ");
int len1 = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter width: ");
int wid1 = Integer.parseInt(sc.nextLine().trim());
Rectangle rect1 = new Rectangle(len1, wid1);
  
System.out.println("\nRECTANGLE 2:\n------------");
System.out.print("Enter length: ");
int len2 = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter width: ");
int wid2 = Integer.parseInt(sc.nextLine().trim());
Rectangle rect2 = new Rectangle(len2, wid2);
  
System.out.println("\nRECTANGLE 3:\n------------");
System.out.print("Enter length: ");
int len3 = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter width: ");
int wid3 = Integer.parseInt(sc.nextLine().trim());
Rectangle rect3 = new Rectangle(len3, wid3);
  
System.out.println("\nRECTANGLE 1:\n" + rect1.toString() + "\n\nRECTANGLE 2:\n" + rect2.toString()
+ "\n\nRECTANGLE 3:\n" + rect3.toString() + "\n");
}
}

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