9. Program to find the sum of each row and each column of a matrix
💡Code:
import java.util.Scanner; public class MatrixSum7078 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // Get the dimensions of the matrix from the user System.out.print("Enter the number of rows: "); int rows = scanner.nextInt(); System.out.print("Enter the number of columns: "); int columns = scanner.nextInt(); // Create the matrix int[][] matrix = new int[rows][columns]; System.out.println("Enter elements for the matrix:"); inputMatrix(matrix, scanner); // Find the sum of each row and each column int[] rowSum = new int[rows]; int[] columnSum = new int[columns]; for (int i = 0; i < rows; i++) { for (int j = 0; j < columns; j++) { rowSum[i] += matrix[i][j]; columnSum[j] += matrix[i][j]; } } // Display the result System.out.println("Sum of Each Row:"); displayArray(rowSum); System.out.println("Sum of Each Column:"); displayArray(columnSum); // Close the scanner scanner.close(); } // Function to input elements into a matrix private static void inputMatrix(int[][] matrix, Scanner scanner) { for (int i = 0; i < matrix.length; i++) { for (int j = 0; j < matrix[0].length; j++) { System.out.print("Enter element at position [" + (i + 1) + "][" + (j + 1) + "]: "); matrix[i][j] = scanner.nextInt(); } } } // Function to display the elements of an array private static void displayArray(int[] array) { for (int element : array) { System.out.print(element + " "); } System.out.println(); } }
📸Output :
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