Example: Multiplication of Two Matrix in Java of Same Dimensions using For loop

// Multiplication of Two Matrix in Java of Same Dimensions using For loop
import java.util.Scanner;

public class Main {

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

        int r, c, i, j, k;
        
        // r - To store number of rows
        // c - To store number of columns
        
        System.out.println ("Enter the number of rows & columns of the matrix::\n");
        r = in.nextInt();
        c = in.nextInt();
        
        int x[][], y[][], m[][];

        x = new int[r + 1][c + 1];
        y = new int[r + 1][c + 1];
        m = new int[r + 1][c + 1];
        
        // x - To store first matrix elements
        // y - To store second matrix elements
        // m - To store multiplication of matrices
        
        System.out.println ("\n---Enter the first matrix's elements---");
        
        for (i = 0; i < r; i++) { 
            for(j = 0; j < c; j++) {    
                x[i][j] = in.nextInt();
            }    
        }
        
        System.out.println ("---Enter the second matrix's elements---");
        
        for(i = 0; i < r; i++) {    
            for(j = 0; j < c; j++) {    
                y[i][j] = in.nextInt();
            }    
        }    
            
        System.out.println ("\n\n-----The multiplication of the matrices is-----\n");
        
        // It's the calculation of matrices's multiplications
        for(i = 0; i < r; i++) {    
            for(j = 0; j < c; j++) {    
                m[i][j] = 0;    
                for(k = 0; k < c; k++) {    
                    m[i][j] += x[i][k] * y[k][j];    
                }    
            }    
        }
        
        // This will display matrices's outputs
        for(i = 0; i < r; i++) {
            System.out.print ("\t");
            for(j = 0; j < c; j++) {    
                System.out.print (m[i][j] + "\t");    
            }
            System.out.println ("\n");    
        }
    }
}