# Row Sum and Column Sum of Matrix in Java

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];

System.out.println("Enter Matrix: ");
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a.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

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