JJ

public class Main {
    public static void main(String[] args) {
        Matrix m1  = new Matrix(1,1);
        Matrix m2 = new Matrix(2,2);
        m1.getMatrix();
        m2.getMatrix();

public class Matrix {
    int[][] m;

    public Matrix(int i, int j) {
        m = new int[i][j];
    }

    public void getMatrix() {
        for (int i = m.length; i <= 2 + m.length; i++) {
            for (int j = m.length; j <= 2 + m.length; j++) {
                System.out.print(i * j + " ");
            }
            System.out.println();
        }

    }
}