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ArrayList is a dynamic array. In other words, you don't need to specify the size at the beginning, you can store values one after another as you go.

main Ex11-Convert HashSet to ArrayList .md Ex12-Add Elements from an Array into a TreeSet.md Ex13-Elements of an Array.md Ex14-First Unique Number in a Stream.md Ex15-Value Existence Check in a ...

An array in Java is a container object that holds a fixed number of values of a single type. The length of an array is established when the array is created and cannot be changed.

I created 100 practice questions for the Java Silver exam and verified the answers by actually running the code for every question on both JDK 11 and JDK 17. Along the way, I compiled 10 points where ...