🚀 Programming Example
Question 8
Learn this program step-by-step with algorithm, source code, output and detailed explanation.
Write a program to input and store integer elements in a double dimensional array of size 4×4 and find the sum of all the elements.
7 3 4 5
5 4 6 1
6 9 4 2
3 2 7 5
Sum of all the elements: 73
import java.util.Scanner;
public class RansariDDASum
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
int arr[][] = new int[4][4];
long sum = 0;
System.out.println("Enter the elements of 4x4 array:");
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
arr[i][j] = in.nextInt();
}
}
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
sum += arr[i][j];
}
}
System.out.println("Sum of all the elements: " + sum);
}
}
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.