Square.java COMPLETE

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();
   }

   //5.Add an area() method to Rectangle that computes the area of the rectangle. Does it work for squares too? Test it.
   public int area(){
      return length * width;
   }
}

//6.Add another subclass called LongRectangle which inherits from Rectangle but has the additional condition that the length is always 2 x the width. Write constructors for it and test it out.
class LongRectangle extends Rectangle{
   public LongRectangle(){
      super(2,1);
   }
   public LongRectangle(int w){
      super(w*2, w);
   }
}

// 1. Make the class square inherit from Rectangle
public class Square extends Rectangle{
   // 2. Add a Square no-argument constructor
   public Square(){
      super();
   }
   // 3. Add a Square constructor with 1 argument for a side
   public Square(int side){
      super(side, side);
   }

   public static void main(String[] args){
      Rectangle r = new Rectangle(3,5);
      r.draw();
      // 4. Uncomment these to test
      Square s1 = new Square();
      s1.draw();
      Square s = new Square(3);
      s.draw();
   }
}