Introduction to Maps in Java A Map in Java is a part of the Java Collections Framework and is designed to store data in key-value pairs. This data structure is extremely useful when you need a mapping ...

Java provides HashSet and TreeSet implementations. For maps, you have the choice between HashMap and TreeMap implementations. A LinkedHashMap retains insertion order.

At the base of the Framework are the interfaces java.util.Collection and java.util.Map. The Collection interface represents just a group of objects, with no particular order or restriction.

Java Collections Framework The Java Collections Framework is a powerful architecture that provides reusable, efficient data structures to manage and organize groups of objects in Java. It includes a ...