Select the correct answerSimpleDateFormat thread safe?OptionsTrueFalseDepends on the usageNone of the above

Break Down the Problem

1. Question Analysis: The question asks whether SimpleDateFormat is thread-safe, providing several options.

Relevant Concepts

2. Thread Safety in Java:
   • A class is considered thread-safe if instances of that class can be safely accessed by multiple threads concurrently without leading to data inconsistency.
   • SimpleDateFormat is known not to be thread-safe because it maintains internal state.

Analysis and Detail

3. Understanding Usage:
   • If multiple threads use a single instance of SimpleDateFormat, it can lead to unpredictable behavior. Thus, if used in a multi-threaded environment, it should be either synchronized or replaced by ThreadLocal instances.

Verify and Summarize

4. Conclusion: Based on the above concepts and analysis, SimpleDateFormat is not thread-safe.

Final Answer

The correct answer is False.