Yes, Java.util is a package in Java that is used to import data structure classes and many other components like date & time, enumeration, exception handling components etc. It has pre-written code blocks for complete data structures, which you can simply import into your code to avoid writing those whole sets of code lines repeatedly. It also contains a certain set of operations for these packages for data structures; you have a stream that is used to traverse and many more. This was simply created to make the code look cleaner, manageable and easy to understand.