Related Topics Data Science Question 55 Explain the structure of an artificial neural network (ANN)? Answer Introduction: An Artificial Neural Network (ANN) is a machine learning model inspired by the structure and function of the human brain. An ANN consists of interconnected nodes, called neurons, organized in layers. The layers are typically divided into three […]
Related Topics Data Science Question 52 How imbalanced datasets handle in a binary classification problem in data science? Answer Imbalanced datasets are a common problem in binary classification where one class has significantly more examples than the other. For instance, consider a binary classification problem to detect fraudulent credit card transactions where the number of
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
Related Topics JAVA Programming Question 7 Can you explain the difference between Stack and Queue in Java? Answer Both Stack and Queue are data structures in Java that allow you to store and retrieve elements, but they have some key differences. Ordering: Stack follows a last-in-first-out (LIFO) ordering, which means that the last element added
Related Topics JAVA Programming Question 1 What is the Collections framework in Java? Answer The Collections framework in Java is a set of classes and interfaces that provide a unified and standardized way of representing and manipulating groups of objects. It is part of the Java API (Application Programming Interface) and is included in the
