Java程序减去两个矩阵

public class Tester {

   public static void main(String args[]) {

      //matrix 1

      int a[][] = { { 1, 3, 4 }, { 2, 4, 3 }, { 3, 4, 5 } };

      //matrix 2

      int b[][] = { { 1, 3, 4 }, { 2, 4, 3 }, { 1, 2, 4 } };

      //result matrix

      int c[][] = new int[3][3]; // 3 rows and 3 columns

      // subtract and print matrix

      for (int i = 0; i < 3; i++) {

         for (int j = 0; j < 3; j++) {

            c[i][j] = a[i][j] - b[i][j];

            System.out.print(c[i][j] + " ");

         }

         System.out.println();

      }

   }

}