# Java Array Tutorials
# Java Array Programs
➤ Find Length of Array
➤ Different ways to Print Array
➤ Sum of Array Elements
➤ Average of Array Elements
➤ Sum of Two Arrays Elements
➤ Compare Two Arrays in Java
➤ 2nd Largest Number in Array
➤ How to Sort an Array in Java
➤ Reverse an Array in Java
➤ GCD of N Numbers in Java
➤ Linear Search in Java
➤ Binary Search in Java
➤ Copy Array in Java
➤ Merge 2 Arrays in Java
➤ Merge two sorted Arrays
➤ Largest Number in Array
➤ Smallest Number in Array
➤ Remove Duplicates
➤ Insert at Specific Position
➤ Add Element to Array
➤ Remove Element From Array
➤ Count Repeated Elements
➤ More Array Programs
Java Matrix Programs
➤ Matrix Tutorial in Java
➤ Print 2D Array in Java
➤ Print a 3×3 Matrix
➤ Sum of Matrix Elements
➤ Sum of Diagonal Elements
➤ Row Sum – Column Sum
➤ Matrix Addition in Java
➤ Matrix Subtraction in Java
➤ Transpose of a Matrix in Java
➤ Matrix Multiplication in Java
➤ Menu-driven Matrix Operations
Row Sum and Column Sum of Matrix in Java | Program description:- Write a Java program to find the sum of each row and the sum of each column in a given matrix. Display the resultant values.
Example:-
Matrix =
20 19 18
17 16 15
14 13 12
Row-1 sum = 20+19+18 = 57
Column-1 sum = 20+17+14 = 51
Row-2 sum = 17+16+15 = 48
Column-2 sum = 19+16+13 = 48
Row-3 sum = 14+13+12 = 39
Column-3 sum = 18+15+12 = 45
Before solving this problem, you should have knowledge of how to declare and initialize a matrix in Java, how to take input for a matrix from the end-user, and what are the different ways to display it. How to find the length or size of a matrix in Java? How to pass and return a matrix in Java. See:- Matrix in Java

Java Program to Find the Sum of Row and Sum of Column in Matrix
import java.util.Scanner;
public class Matrix {
// main method
public static void main(String[] args) {
// declare variables
int row = 0;
int column = 0;
int a[][] = null; // matrix
// create Scanner class object to read input
Scanner scan = new Scanner(System.in);
// ask row and column size
System.out.println("Enter row and column size: ");
row = scan.nextInt();
column = scan.nextInt();
// initialize matrices
a = new int[row][column];
// read matrix A
System.out.println("Enter Matrix: ");
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[0].length; j++) {
a[i][j] = scan.nextInt();
}
}
// variables
int rowsum;
int columnsum;
// find row sum and column sum
for (int i = 0; i < 3; i++) {
rowsum = 0;
columnsum = 0;
for (int j = 0; j < 3; j++) {
rowsum += a[i][j];
columnsum += a[j][i];
}
System.out.println("Row-" + (i + 1) + " sum = " + rowsum);
System.out.println("Column-" + (i + 1) +
" sum = " + columnsum);
}
// close Scanner
scan.close();
}
}
Output:-
Enter row and column size:
3 3
Enter Matrix:
20 19 18
17 16 15
14 13 12
Row-1 sum = 57
Column-1 sum = 51
Row-2 sum = 48
Column-2 sum = 48
Row-3 sum = 39
Column-3 sum = 45
Enter row and column size:
3 3
Enter Matrix:
1 2 3
4 5 6
7 8 9
Row-1 sum = 6
Column-1 sum = 12
Row-2 sum = 15
Column-2 sum = 15
Row-3 sum = 24
Column-3 sum = 18
See more matrix programs in Java:-
- Program to Print 3×3 Matrix
- Sum of matrix elements in Java
- Sum of Diagonal Elements of Matrix in Java
- Matrix Addition in Java
- Subtraction of two matrices in Java
- Transpose of a Matrix in Java
- Matrix Multiplication in Java
- Menu-driven program for Matrix operations
Also See:-
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