Utils.java

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package com.mycompany.assisgnment;

/**
 *
 * @author njain yeah otherwise biases of superiorty takes over.
 */
public class Utils {

    public static void recurseAdd(int[][] C, int[][] A, int[][] B, int rowC, int colC) {
        int n = A.length;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                C[i + rowC][j + colC] = A[i][j] + B[i][j];
            }
        }

    }

    public static int[][] add(int[][] A, int[][] B) {
        int n = A.length;
        int[][] result = new int[n][n];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                result[i][j] = A[i][j] + B[i][j];
            }
        }
        return result;
    }

    public static int[][] subtract(int[][] A, int[][] B) {
        int n = A.length;
        int[][] result = new int[n][n];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                result[i][j] = A[i][j] - B[i][j];
            }
        }
        return result;
    }

}