User interface contains two types of user input controls: TextInput, which accepts all characters and NumericInput, which accepts only digits.
Implement the class TextInput that contains:
- Public method void add(char c) - adds the given character to the current value
- Public method String getValue() - returns the current value
Implement the class NumericInput that:
- Inherits from TextInput
- Overrides the add 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');
System.out.println(input.getValue()); - Example case: java.lang.ClassCastException
- Adding various characters to TextInput: java.lang.NoSuchMethodException
- Adding numeric characters to NumericInput: java.lang.ClassCastException
- Adding various characters to NumericInput: java.lang.ClassCastException
Tags
JavaScore Distribution
| 0-33% | |
|---|---|
| 34-66% | |
| 67-100% |
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