Two Dimension Array

Two-Dimensional Arrays in Java

In Java, a two-dimensional array is an array of arrays. It allows you to store data in a grid-like structure with rows and columns. Each element in a two-dimensional array is accessed using two indices: one for the row and one for the column.

To declare and create a two-dimensional array in Java, you can use the following syntax:

    
      data_type[][] array_name = new data_type[row_length][column_length];
    
  

For example, to create a two-dimensional array of integers with 3 rows and 4 columns, you can use the following code:

    
      int[][] grid = new int[3][4];
    
  

You can also initialize a two-dimensional array with specific values using nested array initializers:

    
      int[][] grid = {
        {1, 2, 3},
        {4, 5, 6},
        {7, 8, 9}
      };
    
  

Here's a memory diagram representing the two-dimensional array "grid" with 3 rows and 4 columns:

1

2

3

0

4

5

6

0

7

8

9

0