If the elements of an enumerated type are used primarily in sets, it is traditional to use the int enum pattern (Item 34), assigning a different power of 2 to each ...

// Parameter is bitwise OR of zero or more STYLE_ constants public void applyStyles(int styles) { ... } This representation lets you use the bitwise OR operation to combine several constants into a ...

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After having spent several years developing primarily in C++, I missed having an enum in Java until it was finally introduced with J2SE 5. The long wait was worth it because the Java enum is much more ...

☕ Java Core Concepts – Interview Question 📌 What is EnumSet in Java? EnumSet is a specialized implementation of the Set interface designed specifically for use with enum types. It is part of the Java ...

That creates unnecessary overhead. HashSets use hash tables and object headers. Use EnumSet instead. It uses a bit vector internally. It is extremely fast and uses almost no memory. It is perfect for ...