Question

1) Define a 2 dimensional arrays of doubles (3 rows by 3 columns) and 2) Read values from the user. 3) Print the numbers entered by the user in row major order 4) Print the numbers entered by the user in column major order import java.util.*; public class XXX_Chapter83 { public static void main(String[] args) { //creates array and stores values with input from user printArrayRowMajor (board); printArrayColumnMajor (board); } public static void printArrayRowMajor (int [] [] board) { //prints the numbers in row major order } public static void printArrayColumnMajor (int [] [] board) { //prints the numbers in column major order } }

Answer 1

import java.util.*;

public class XXX_Chapter83 {

   public static void main(String[] args) {
       // creates array and stores values with input from user
       int board[][] = new int[3][3];

       Scanner scan = new Scanner(System.in);
       for (int i = 0; i < 3; i++) {
           for (int j = 0; j < 3; j++) {
               System.out.print("Enter element [" + i + "," + j + "] : ");
               board[i][j] = scan.nextInt();
           }
       }
       System.out.println();
       printArrayRowMajor(board);
       printArrayColumnMajor(board);
   }

   public static void printArrayRowMajor(int[][] board) {
       // prints the numbers in row major order
       System.out.println("Row major order");
       for (int row = 0; row < 3; row++) {
           for (int col = 0; col < 3; col++) {
               System.out.print(board[row][col] + " ");
           }
       }
   }

   public static void printArrayColumnMajor(int[][] board) {
       // prints the numbers in column major order
       System.out.println("\nColumn major order");
       for (int row = 0; row < 3; row++) {
           for (int col = 0; col < 3; col++) {
               System.out.print(board[col][row] + " ");
           }
       }
   }
}

OUTPUT