Concept of Collection framework in java

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Collection framework is a set of interfaces and classes that provide a way to store and manipulate groups of objects in Java.

Collection framework provides interfaces like List, Set, Queue, etc. for storing and manipulating groups of objects.
It also provides classes like ArrayList, HashSet, PriorityQueue, etc. that implement these interfaces.
Collection framework provides algorithms like sorting, searching, shuffling, etc. that can be applied to collections.
It also provides utility classes like Collections that provide methods for performing common operations on collections.
Collection framework is a core part of Java and is widely used in Java programming.
Example: List names = new ArrayList<>(); names.add("John"); names.add("Mary");
Example: Set numbers = new HashSet<>(); numbers.add(1); numbers.add(2);
Example: Queue queue = new LinkedList<>(); queue.add("A"); queue.add("B");

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