my_first_gist.dart

void main() {
  // My First gist

  Calculator calc = Calculator();

  int result = calc.addTwoNumbers(1, 2);

  int result2 = calc.addTwoNumbers(result, 5);

  print(result2);
}

// Framework
class Calculator {
  int addTwoNumbers(int num1, int num2) {
    return num1 + num2;
  }
}