What are common mistakes developers make with Set?

Common mistakes developers make with the Set collection in Java include misunderstanding its behavior, failing to use the appropriate Set implementation, and incorrectly assuming Sets allow duplicate elements. This can lead to inefficient code and unexpected results.
Set, Java, common mistakes, developers, collection framework, duplicate elements
// Example of common mistake with Set in Java import java.util.HashSet; import java.util.Set; public class SetExample { public static void main(String[] args) { Set set = new HashSet<>(); set.add("Apple"); set.add("Banana"); set.add("Apple"); // Mistake: Duplicates will not be added // Output the size of the set System.out.println("Size of Set: " + set.size()); // Expected: 2 } }

Set Java common mistakes developers collection framework duplicate elements

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