Question

A bookstore keeps books on 50 racks with 10 shelves each. Each shelf holds 25 books. Declare a 3D String array to hold the names of all the books in the store. The array’s three dimensions should represent the racks, shelves, and books in the store.

Answer 1

/******************************BookStroe.java**********************************/

public class BookStore {

   public static void main(String[] args) {

       String[][][] bookStore = new String[50][10][25];

       bookStore[0][0][0] = "C Programming";
       bookStore[1][1][1] = "Java Programming";
       bookStore[49][9][24] = "Advance Java programming";
       System.out.println("The fist book in first rack, first shelf is : " + bookStore[0][0][0]);
       System.out.println("The second book in second rack, second shelf is: "+bookStore[1][1][1]);
       System.out.println("The last book in last self of last rack is: "+bookStore[49][9][24]);

   }
}

/*********************output***************************/

The fist book in first rack, first shelf is : C Programming
The second book in second rack, second shelf is: Java Programming
The last book in last self of last rack is: Advance Java programming

Please let me know if you have any doubt or modify the answer, Thanks :)