Java Programming
primer-original-v2mediumJava Programming05 Regular Expressionprimer-original-v2

What is the regular expression to match a digit (0-9) in a string?

Answer options

A
\d
B
[0-9]
C
\D
D
[^0-9]

Correct answer: \d

Explanation

Quick AnswerThe correct answer is \d because it directly addresses the core logic of Java Programming.

This question has been retained as-is due to its unique context.

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