Q11hard
Look at this Regex: ^\d{5}$. Which string will it match?
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15 Questions Total
Strings & Text Processing MCQs
Topic-wise practice questions for Programming (C++ / Java / Python). Test your knowledge, check solutions on demand, and pace your preparation.
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Practice in Timed ModeQ12easy
What is the purpose of the trim() function in string processing?
Q13medium
In UTF-8 encoding, how many bytes are typically used to represent a standard English character versus an Emoji?
Q14hard
You need to build a long HTML report by joining 10,000 small strings together in a loop. Which approach is the most efficient?
Q15medium
You have a multithreaded application where 10 threads are all appending data to a shared log string simultaneously. Which class should you use in Java to ensure no data is corrupted?