Mastering Java 2025 – 400 Free Practice Questions to Pass the 'Thinking in Java' Exam

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What is the purpose of Collections.syncronizedList() method?

To make the list thread-safe

Collections.syncronizedList() method is used to make a list thread-safe, or to ensure that the list can be accessed and modified by multiple threads without causing errors or inconsistency in data. Options B, C, and D are incorrect as they involve manipulating the list in a different way, rather than making it thread-safe. Sorting, shuffling, and reversing the list order may not prevent errors or inconsistencies when it is accessed and modified by multiple threads. Therefore, it is important to use Collections.syncronizedList() method in such cases.

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To sort the list

To shuffle the list elements

To reverse the list order

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