123. JAVA Program to find Row sum and Column sum of a given matrix.
How does this program work?
- In this program we are going to learn about how to find Row sum and Column sum of given matrix using java.
- Elements can be stored in a variable using arrays. Declare variable sumRow and sumCol, and Initialize with 0.
- After that by using the forloop condition we find the Rowsum and Columnsum of given matrix.
Here is the code
//To find Row sum and Column sum of a given matrix
public class Sum{
public static void main( String[] args)
{
int rows, cols, sumRow, sumCol;
//Initialize matrix a
int a[][] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} };//Calculates number of rows and columns present in given matrix
rows = a.length;cols = a[0].length;
//Calculates sum of each row of given matrix
for(int i = 0; i < rows; i++){
sumRow = 0;
for (int j = 0; j < cols; j++)
{
sumRow = sumRow + a[i][j];
}
System.out.println("Sum of " + (i+1) +" row: " + sumRow);
}
//Calculates sum of each column of given matrix
for (int i = 0; i < cols; i++){
sumCol = 0;
for (int j = 0; j < rows; j++)
{
sumCol = sumCol + a[j][i];
}
System.out.println( "Sum of " + (i+1) +" column: " + sumCol );
}
}
}
