Question

Make a class whose objects each represent a box of bricks. Also, the class has to include the following services for its objects:

show what's in the box

get the weight of the box

determine if two boxes are equal

Answer 1

Code--

import java.util.*;
//make a class
class BrickBox
{
   private int noOfBricks;
   private double wtOfOneBrick;
   public BrickBox(int noOfBricks,double wtOfOneBrick)
   {
       this.noOfBricks=noOfBricks;
       this.wtOfOneBrick=wtOfOneBrick;
   }
   /*this method will return the
   total weight of a box*/
   public double getBoxWt()
   {
       return noOfBricks*wtOfOneBrick;
   }
   public boolean isEqual(BrickBox bb)
   {
       if(this.noOfBricks==bb.noOfBricks)
       {
           if(this.wtOfOneBrick==bb.wtOfOneBrick)
           {
               return true;
           }
       }
       return false;
   }
}
public class BrickBoxTest
{
   public static void main(String[] args)
   {
       BrickBox box1=new BrickBox(20,(double)1.5);
       BrickBox box2=new BrickBox(20,(double)1.5);
       BrickBox box3=new BrickBox(30,(double)1.5);
      
       System.out.println("Weight of box1 = "+box1.getBoxWt());
       System.out.println("Weight of box2 = "+box2.getBoxWt());
       System.out.println("Weight of box3 = "+box3.getBoxWt());
       System.out.println();
      
       if(box1.isEqual(box2))
       {
           System.out.println("Box1 and Box2 is equal");
       }
       else
       {
           System.out.println("Box1 and Box2 is not equal");
       }
       if(box2.isEqual(box3))
       {
           System.out.println("Box2 and Box3 is equal");
       }
       else
       {
           System.out.println("Box2 and Box3 is not equal");
       }
       if(box1.isEqual(box3))
       {
           System.out.println("Box1 and Box3 is equal");
       }
       else
       {
           System.out.println("Box1 and Box3 is not equal");
       }
   }
}

Output Screenshot--

Note--

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