Which of the following is NOT an input error?

Question

BlackTom AI · Accepted Answer

Input validation identifies missing or malformed data — common input errors include empty fields, invalid formats, and wrong data types. A “correct number” is a valid input, not an error.

1. Relevant knowledge points and concepts
- Input error: any user-supplied value that fails validation rules (e.g., required presence, expected format, or expected data type).
- Empty field (missing input): when a required field has no value.
- Invalid format: when the value is present but does not match required patterns (e.g., date format, phone pattern).
- Wrong data type: when the value is of a different type than expected (e.g., text entered where a numeric type is required).
- Correct input: a value that meets all validation criteria (presence, format, and data type).

2. Complete reasoning process step by step
- Examine each option and test it against the definition of “input error.”
- Option a: “Empty field” — missing required data; clearly an input error.
- Option b: “Invalid format” — value present but malformed; clearly an input error.
- Option d: “Wrong data type” — value of incorrect type; clearly an input error.
- Option c: “Correct number” — implies a numeric value that satisfies presence, type, and format rules; not an error.

3. Calculations / intermediate steps
- No numeric calculations are needed; the process is classification-based: classify each choice as error or valid.

4. Why the correct answer is correct
- A “correct number” satisfies validation constraints (it is present, of the correct data type, and in the correct format). Since input errors are failures of these constraints, a correct value is not an input error.

5. Why other options are incorrect
- a. Empty field: Incorrect to call it non-error because it violates the “required” constraint.
- b. Invalid format: Incorrect to call it non-error because it violates format validation.
- d. Wrong data type: Incorrect to call it non-error because it violates type validation.

6. Conclusion
- Therefore, the option that is NOT an input error is c. Correct number, which matches the provided answer.

Which of the following is NOT an input error?单项选择题

类似问题

Which approach is more robust?

If TryParse returns false, what should be done?

A user leaves the age TextBox empty and clicks a button. What should the program do?

The purpose of validation is to

What type of check is shown above?

The purpose of validation is to check that data input is

The following pseudocode is an example of which type of validation check?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单