User interface contains two types of user input controls: TextInput, which accepts all characters and NumericInput, which accepts only digits.

Implement the following methods:

  • add on class TextInput - adds the given character to the current value
  • getValue on class TextInput - returns the current value
  • add on class NumericInput - overrides the base class method so that each non-numeric character is ignored

For example, the following code should output "10":

TextInput* input = new NumericInput();
input->add('1');
input->add('a');
input->add('0');
std::cout << input->getValue();
C++17  
 

  •   Example case: Exception
  •   Adding various characters to TextInput: Exception
  •   Adding various characters to NumericInput: Exception

Tags
C++ OOP Public
Easy

15min

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