JAVA INTERVIEW QUESTIONS
Java Interview Questions and Answers (Part-II)
41. How is an abstract class different from an interface in Java? Answer: Q42. What is the Java Memory Model (JMM), and why is it important? Answer:The Java ...
Java Interview Questions and Answers (Part-I)
Q21. What is a Copy Constructor in Java? A copy constructor is a special constructor used to create a new object by copying the values from an existing ...
Java Interview Questions and Answers (Level-1)
Q1. What are the data types in Java? Java supports two main categories of data types: Example: java int age = 25; String name = “John”; 🔹 Q2. ...
Java Backend Developer Interview Questions (Level-3)
24. How to find the longest word in a list using Streams? java List<String> words = Arrays.asList(“apple”, “banana”, “cherry”, “date”); String longestWord = words.stream() .max(Comparator.comparingInt(String::length)) .orElse(null); System.out.println(longestWord); // ...
Java Backend Developer Interview Questions (Level-2)
12. What Are the Different Types of Streams in Java 8? Java 8 introduced two types of streams for functional-style data processing: 13. Can You Use Multiple Filters ...
Java Backend Developer Interview Questions (Level-1)
Question 1: What are the main features introduced in Java 8? Answer:Java 8 introduced several powerful features that transformed Java into a more modern programming language: Question 2: ...
JAVA OOPS Interview Questions and Answers (Level-3)
15. What are static methods and variables in Java? How are they used in utility classes? Answer In Java, the keyword static is used to declare members (variables ...
JAVA OOPS Interview Questions and Answers (Level-2)
8. What is the difference between List and Set in Java Collections? Answer In Java Collections, List and Set are two of the most commonly used interfaces, but ...
JAVA OOPS Interview Questions and Answers (Level-1)
1. What is Encapsulation, and how is it used in frameworks like Selenium or TestNG? Answer Encapsulation is one of the core principles of Object-Oriented Programming (OOP). It ...
