Java programming interview Prep: 400+ Questions & Answers

Are you ready to embark on a journey towards mastering Java programming and acing your upcoming interviews? Look no further! Our comprehensive course is designed to equip you with the essential knowledge and practice needed to excel in Java programming interviews in 2024 and beyond.

In this course, we cover over 400+ carefully curated practice questions and answers, meticulously crafted to reinforce your understanding of key Java concepts and prepare you for the challenging interview scenarios you may encounter.

Course Topics Covered:

1. Java Basics:

   • Data types (primitive and non-primitive)

   • Variables, constants, and literals

   • Operators (arithmetic, assignment, comparison, logical, bitwise)

   • Control flow statements (if-else, switch-case, loops)

   • Arrays and strings

2. Java OOP Concepts:

   • Object-oriented programming concepts (classes, objects, inheritance, polymorphism, encapsulation, abstraction)

   • Constructors and methods

   • Access modifiers (public, private, protected, default)

   • Packages and import statements

3. Java Core APIs:

   • String manipulation (String, StringBuilder, and StringBuffer)

   • Wrapper classes (Integer, Double, Boolean, etc.)

   • Date and time API (java.time package)

   • Exception handling (try-catch-finally, throw, throws)

   • Collections framework (List, Set, Map, ArrayList, LinkedList, HashSet, HashMap, etc.)

   • Generics

   • Iterators and foreach loop

   • Multithreading and concurrency (Thread class, Runnable interface, synchronized keyword, Executor framework)

4. Java I/O:

   • File handling (File class, FileReader, FileWriter, BufferedReader, BufferedWriter)

   • Input and output streams (InputStream, OutputStream, FileInputStream, FileOutputStream)

   • Serialization and deserialization

5. Java Advanced Concepts:

   • Annotations (built-in annotations like @Override, @Deprecated, @SuppressWarnings, custom annotations)

   • Reflection

   • Enumerations

   • Lambda expressions and functional interfaces

   • Java Virtual Machine (JVM) architecture

   • Garbage Collection

   • Design patterns (Singleton, Factory, Builder, MVC, Observer, etc.)

   • JDBC (Java Database Connectivity)

   • Networking (Socket programming)

6. Practice Questions and Answers:

   • Over 400+ practice questions covering the above topics

   • Answers and explanations for better understanding

By systematically covering these topics and practicing with the provided questions and answers, you’ll be well-prepared to excel in Java programming interviews and secure your dream job

Rating Distribution

• 1 stars: 0 votes
• 2 stars: 0 votes
• 3 stars: 0 votes
• 4 stars: 1 votes
• 5 stars: 0 votes

Frequently Asked Questions

How long do I have access to the course materials?

You can view and review the lecture materials indefinitely, like an on-demand channel.

Can I take my courses with me wherever I go?

Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don’t have an internet connection, some instructors also let their students download course lectures. That’s up to the instructor though, so make sure you get on their good side!