In Java, Collection and Collections are two related but different concepts:
1.Collection is an interface in the Java Collections Framework that represents a group of objects, called elements. It provides a standard way to manage groups of objects and is the root interface of the collection hierarchy. Implementations of this interface include List, Set, Queue, and Deque.
2.Collections is a utility class in the Java Collections Framework that provides various methods for working with collections. It contains static methods that can be used to perform operations on collections, such as sorting, searching, and copying. These methods are often used in conjunction with the Collection interface, but can also be used with other collection types such as arrays.
To summarize, Collection is an interface that defines a group of objects, while Collections is a utility class that provides methods for working with collections.
Here are some key differences between Collection and Collections:
1.Collection is an interface that represents a group of objects, while Collections is a utility class that provides methods for working with collections.
2.Collection provides a standard way to manage groups of objects, while Collections provides methods for manipulating and searching collections.
3.Collection is a part of the Java Collections Framework, while Collections is a part of the java.util package.
4.Collection is an interface that must be implemented by concrete classes, while Collections is a static utility class that provides methods that can be used directly.
In summary, Collection and Collections are two related but distinct concepts in the Java programming language. The Collection interface provides a standard way to manage groups of objects, while the Collections utility class provides various methods for working with collections.
