Java Collections is the type of the set of classes that help to implement the common reusable data. Java Collections framework is one of the most important parts of the Java programming language. Java Collections is the type of containers that help you group all the types of multiple items in the single units. The collection in Java is mainly a type of framework that helps to provide an architecture to store and manipulate all the other group of the objects. Java Collections will help you to achieve all the operations that one can perform on the data. This type of operations includes searching, sorting, inserting, manipulation and deletion. There are some of the Java Collections interview questions and answers that will help you a lot.
The Java Collections basically means the single units of the objects. Java Collections framework also provides several types of interfaces and the classes. In the Java Collections framework, the collection interface and the map interfaces are the most important types of the Java Collections classes. Below are some of the Java Collections interview questions and answers.