Matches exactly n occurrences of the preceding character or group ({n})
References
java.util.regex
java.util.Matcher
References
Importance of java.util.regex
Concurrent collections are specialized data structures in programming that facilitate safe and efficient manipulation of shared data by multiple threads in a concurrent environment. Traditional collections, like lists, queues, or maps, often face issues like race conditions when accessed by multiple threads simultaneously. Concurrent collections address these issues by providing built-in thread-safe operations. Concurrent collections …