public void run() {
        Matrix m;
        try {
            m = new Matrix(3,4);
        } catch(Matrix.MatrixError e) {
            System.out.println("Matrix dimensions set badly.");
            return;
        }
        m.setElement(2,3,-10);
        m.setRow(1, "66666,777777,8888888");
        m.setColumn(0, "2,33,444,5555");
        m.prettyPrint();
        IOGeneric.printResult(m.toString(), "-");
    }