We refer to the first as the “Java array.” Though making matters a little more confusing, this is actually most similar to what we would call a “list” in many other programming languages!

However, there are collection classes in Java that act like a Java array but resize themselves automatically. Any class that extends the List interface expands dynamically. Java arrays do not expand ...

There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used approaches: Use a method in the Java Streams API ...