Answer to Question #263177 in Java | JSP | JSF for Marwa

Question

Write a Java program that prompts the user to input numbers in two matrices of the same size and compute the sum of the matrices

Answer 1

import java.util.Scanner;


public class App {
	public static void main(String args[]) {
		
		Scanner in = new Scanner(System.in);


		System.out.print("Input number of rows of matrix: ");
		int numberRows = in.nextInt();
		System.out.print("Input number of columns of matrix: ");
		int columnsMatrix = in.nextInt();


		int matrix1[][] = new int[numberRows][columnsMatrix];
		int matrix2[][] = new int[numberRows][columnsMatrix];
		int matrixSum[][] = new int[numberRows][columnsMatrix];


		System.out.println("Input elements of first matrix: ");
		for (int i = 0; i < numberRows; i++) {
			for (int j = 0; j < columnsMatrix; j++) {
				matrix1[i][j] = in.nextInt();
			}
		}
		System.out.println("Input the elements of second matrix: ");
		for (int i = 0; i < numberRows; i++) {
			for (int j = 0; j < columnsMatrix; j++) {
				matrix2[i][j] = in.nextInt();
			}
		}
		for (int i = 0; i < numberRows; i++) {
			for (int j = 0; j < columnsMatrix; j++) {
				matrixSum[i][j] = matrix1[i][j] + matrix2[i][j];
			}
		}
		System.out.println("Sum of the matrices:");
		for (int i = 0; i < numberRows; i++) {
			for (int j = 0; j < columnsMatrix; j++) {
				System.out.print(matrixSum[i][j] + "\t");
			}
			System.out.println();
		}
		in.close();
	}
}