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Java Collections

The java.util.Collections class contains static methods that operate on or return collections.
It has following characteristic.
  • It contains polymorphic algorithms that operate on collections, "wrappers", which return a new collection backed by a specified collection.
  • The methods of this class all throw a NullPointerException if the collections or class objects provided to them are null.
  • Collections is a member of the Java Collection Framework.
  • Collections API

Learn Java Collection by Example

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