Java – Two dimensional arrays

Two dimensional arrays:

• One dimensional array is linear, the elements store side by side.
• Two dimensional arrays are used to process elements in rows and columns.
• We can declare a 2 dimensional array in different ways.

class Main
{
	public static void main(String[] args) 
	{
		int a[][];
		int[][] b;
		int[] c[];
	}
}

Memory allocation of 2 dimensional arrays:

• We use nested for loop to process the elements of two dimensional array.
• Outer loop represents number of rows.
• Inner loop represents number of columns.