Create a Square class that inherits from Rectangle.

class Rectangle {

private int length;

private int width;

public Rectangle() {

length = 1;

width = 1;

}

public Rectangle(int l, int w) {

length = l;

width = w;

}

public void draw() {

for (int i = 0; i < length; i++) {

for (int j = 0; j < width; j++)

System.out.print("* ");

System.out.println();

}

System.out.println();

}

}

// 1. Make the class square inherit from Rectangle

class Square extends Rectangle {

// 2. Add a Square no-argument constructor

Square() {

super();

}

// 3. Add a Square constructor with 1 argument for a side

Square(int side) {

super(side, side);

}

public static void main(String[] args) {

Rectangle r = new Rectangle(3, 5);

r.draw();

Square s1 = new Square();

s1.draw();

Square s = new Square(3);

s.draw();

}

}