Java Matrix Subtraction

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import java.util.Scanner;

public class JavaMatrixSubtraction {

	public static void main(String args[]) {
		int rows, columns, c, d;
		Scanner in = new Scanner(System.in);
		System.out.println("Enter the number of rows and columns of matrix");
		rows = in.nextInt();
		columns = in.nextInt();
		int matrix1[][] = new int[rows][columns];
		int matrix2[][] = new int[rows][columns];
		int diff[][] = new int[rows][columns];
		System.out.println("Enter the elements of matrix1");
		for (c = 0; c < rows; c++) {
			for (d = 0; d < columns; d++) {
				matrix1[c][d] = in.nextInt();
			}
		}
		System.out.println("Enter the elements of matrix2");
		for (c = 0; c < rows; c++) {
			for (d = 0; d < columns; d++) {
				matrix2[c][d] = in.nextInt();
			}
		}
		for (c = 0; c < rows; c++) {
			for (d = 0; d < columns; d++) {
				diff[c][d] = matrix1[c][d] - matrix2[c][d];
			}
		}
		System.out.println("Difference of entered matrices:-");
		for (c = 0; c < rows; c++) {
			for (d = 0; d < columns; d++) {
				System.out.print(diff[c][d] + "\t");
			}
			System.out.println();
		}
	}
}
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