Write a java program to perform multiplication of two matrices

import java.util.Scanner;


class MatrixMultiplication
    {
        publicstaticvoid main(String args[])
    {
        int m, n, p, q, sum = 0, c, d, k;

    Scanner in = new Scanner(System. in);
    System.out.println("Enter the number of rows and columns of first matrix");
    m = in.nextInt();
    n = in.nextInt();

    int first[][] = newint[m][n];

    System.out.println("Enter elements of first matrix");

    for (c = 0; c < m; c++)
    for (d = 0; d < n; d++)
    first[c][d] = in.nextInt();

    System.out.println("Enter the number of rows and columns of second matrix");
    p = in.nextInt();
    q = in.nextInt();

    if (n != p)
    System.out.println("The matrices can't be multiplied with each other.");
    else
    {
    int second[][] = newint[p][q];
    int multiply[][] = newint[m][q];

    System.out.println("Enter elements of second matrix");

    for (c = 0; c < p; c++)
    for (d = 0; d < q; d++)
    second[c][d] = in.nextInt();

    for (c = 0; c < m; c++)
    {
    for (d = 0; d < q; d++)
    {
    for (k = 0; k < p; k++)
    {
    sum = sum + first[c][k] * second[k][d];
    }

    multiply[c][d] = sum;
    sum = 0;
    }
    }

    System.out.println("Product of the matrices:");

    for (c = 0; c < m; c++)
    {
    for (d = 0; d < q; d++)
    System.out.print(multiply[c][d]+"t");

    System.out.print("n");
    }
    }
    }
    }