Multidimensional Array, Java Array Tutorial

Java Multidimensional Array

In java, multidimensional (array of arrays) can be defined using following syntax.

<type> arrayName[]…[];
or
<type>[]…[] arrayName[];

Where []…[] denotes number of dimension.

We can also combine array declaration and array construction in one statement as follows.

<type>[]…[] arrayName = new <type>[]…[];

 
Example of declaring multidimensional array

int myIntArray[][] = new int[5][5];
String myStringArray[][] = new String[5][5];

Multidimensional can also be created and initialized in single expression as follows.

int myIntArray[][] = {
{1,2,3},
{4,5,6}
}

Note: While constructing multidimensional array, length of deeply nested array can be omitted which will not be constructed.

For example,

int myIntArray[][][] = new int[1][2][];

Deeply nested array can be constructed later on using loop.


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