Related Topics JAVA Programming Question 21 Can you explain the use of the java.util.Queue interface in Java? Answer The java.util.Queue interface in Java represents a collection of elements that can be inserted at one end and removed from the other end. The Queue interface is part of the Java Collections Framework, and it is implemented […]
Related Topics JAVA Programming Question 15 Can you explain the use of the java.util.Properties class in Java? Answer The java.util.Properties class in Java is used to manage application settings and configuration information. It provides a simple key-value store for storing configuration information as a set of properties, which can be loaded from or saved to
Related Topics JAVA Programming Question 8 What is the purpose of the Comparator interface in the Java Collections Framework? Answer The Comparator interface in the Java Collections Framework is used to define a custom ordering or sorting of elements in a collection. Here are some key features and uses of the Comparator interface: Custom sorting:
Related Topics JAVA Programming Question 1 What is the purpose of the java.util package? Answer The java.util package is one of the core packages of the Java Standard Library, and it provides a variety of utility classes and interfaces to perform common tasks in Java programming. Some of the key features of the java.util package
Related Topics JAVA Programming Question 43 Can you explain the CopyOnWriteArraySet in Java? Answer Yes, the CopyOnWriteArraySet is a thread-safe implementation of the Set interface in Java. It is similar to the CopyOnWriteArrayList and uses a copy-on-write strategy to provide thread safety. When an element is added to or removed from the CopyOnWriteArraySet, a new
Related Topics JAVA Programming Question 37 Can you explain the difference between the LinkedHashMap and HashMap in Java? Answer LinkedHashMap and HashMap are two implementations of the Map interface in Java. They have many similarities, but there are also some key differences between them. The main difference between LinkedHashMap and HashMap is that LinkedHashMap maintains
Related Topics JAVA Programming Question 31 Can you explain the ArrayDeque class in Java? Answer In Java, the ArrayDeque class is a double-ended queue that is implemented as an array. It is a member of the Java Collections Framework and provides a more efficient alternative to the LinkedList class in many cases. Here are some
Related Topics JAVA Programming Question 24 Can you explain the difference between Collection and Collections in Java? Answer There is a significant difference between Collection and Collections in Java. Collection is an interface in the Java Collections Framework that defines the basic methods for working with groups of objects. It is the root interface of
Related Topics JAVA Programming Question 18 Can you explain the difference between List and Set in Java? Answer List Set A List is an ordered collection of elements, which allows duplicates and null elements. A Set is an unordered collection of unique elements, which does not allow duplicates and can contain at most one
Related Topics JAVA Programming Question 13 What is a Deque in Java and what are its main features? Answer In Java, Deque stands for “double-ended queue”, and is an interface in the Collections framework that represents a sequence of elements that can be accessed and modified at both ends. The Deque interface extends the Queue
