Web Reference: As implied by its name, this interface models the mathematical set abstraction. The Set interface places additional stipulations, beyond those inherited from the Collection interface, on the contracts of all constructors and on the contracts of the add, equals and hashCode methods. Nov 18, 2025 · In Java, the Set interface is a part of the Java Collection Framework, located in the java.util package. It represents a collection of unique elements, meaning it does not allow duplicate values. The Set interface is part of the Java Collections Framework and is used to store a collection of unique elements. Unlike a List, a Set does not allow duplicates, and it does not preserve the order of elements (unless you're using TreeSet or LinkedHashSet).
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Java Collection Set Interface Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $50M - $74M
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Last Updated: April 7, 2026
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