# Two Dimensional Arrays Java Code Example

Snippet 1

``` ``` Two dimensional array:
int[][] twoD_arr = new int;

Three dimensional array:
int[][][] threeD_arr = new int;
``` ```

Snippet 2

``` ``` //Length
int[][]arr= new int [filas][columnas];
arr.length=filas;

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

// calculate the length of each row
System.out.println("Length of row 1: " + a.length);
System.out.println("Length of row 2: " + a.length);
System.out.println("Length of row 3: " + a.length);
}``` ```

Snippet 3

` `  int[][] arr = new int[m][n]; ` `

Snippet 4

``` ``` # In python, one dimensional array look like this:

array = ['plain', ' and ', 'boring!']

# and I'd call an index of that one dimensiona list like this:

print(array)

>> boring!

# "Okay, nice, but what is a 2D array?" I hear you ask...
# Well, a 2D array would look like this:

array = (['wow, ', 'that is ', 'so ']
['cool', ' it has ', 'two rows!'])

# The 2D array has two rows instead of one.
# You can call its index like this:

print(array) #  is the index of the second row and  is the index
# for 'two rows!'

>> two rows!

# And a 3D array would look like this:

array = ([1, 2, 3]
[4, 5, 6]
[7, 8, 9])``` ```

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