Multi-Dimensional Array In Java Example

Chapter: Miscellaneous Last Updated: 18-06-2016 16:34:12 UTC

Program:

            /* ............... START ............... */
                
public class JavaMultiDiamentionalArray {
	public static void main(String args[]) {
		int sum = 0;
		int nums[][] = new int[3][5];
		// give nums some values
		for (int i = 0; i < 3; i++)
			for (int j = 0; j < 5; j++)
				nums[i][j] = (i + 1) * (j + 1);
		// use for-each for to display and sum the values
		for (int x[] : nums) {
			for (int y : x) {
				System.out.println("Value is: " + y);
				sum += y;
			}
		}
		System.out.println("Summation: " + sum);
	}
}
                /* ............... END ............... */
        

Output

Value is: 1
Value is: 2
Value is: 3
Value is: 4
Value is: 5
Value is: 2
Value is: 4
Value is: 6
Value is: 8
Value is: 10
Value is: 3
Value is: 6
Value is: 9
Value is: 12
Value is: 15
Summation: 90

Notes:

  • We can declare a two dimensional array and directly store elements at the time of its declaration as: int marks[][]={{50,60,55,67,70},{62,65,70,70,81}}.
  • In Multi-Diamensional data is stored in row and column based index (also known as matrix form).

Tags

Multi-Dimensional Array, Java

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