Two-dimensional Array

A data structure that contains data in tabular format. Array/s within an array or in mathematical terminology - subset/s of a set

Printing 2D-Array contents

for (int row = 0; row < tttboard.length; row++) {          //traverse the row

     for (int col = 0; col < tttboard[0].length; col++) {  //traverse each data in a row

          System.out.print(tttboard[row][col]);            //print each element in a row

     }

     System.out.println();                                 //move next print to next line

}

Assigning Values to a 2D-Array

int[][] table = new int[3][3];

table[0][0] = 1;

table[0][1] = 2;

table[0][2] = 3;

table[1][0] = 2;

table[1][1] = 3;

table[1][2] = 1;

table[2][0] = 3; 

table[2][1] = 2;

table[2][2] = 1;

Output of the table[][] array

1 2 3

2 3 1

3 2 1

Printing using nested for loop

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

     for(int  j = 0; j < board[i].length; j++){

          System.out.print(board[i][j] + " ");     

     }

     System.out.println();

}