Java Technical Interview Questions for Freshers 2024
Top Java Interview Questions for Freshers 2024
Java Technical Interview Questions for Freshers 2024
Java technical interview questions for freshers in 2024 are likely to cover fundamental concepts such as object-oriented programming principles, data structures, control structures, exception handling, and multithreading. Expect questions on topics like inheritance, polymorphism, encapsulation, arrays, collections, Java libraries, and basic algorithms. Increased focus may also be placed on practical coding assessments to assess problem-solving skills and coding abilities. It is recommended that freshers thoroughly understand core Java concepts and practice coding exercises to prepare for such interviews effectively.
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1 - Core Java Concepts:
Understanding the basics of Java programming language, including data types, control structures, and object oriented programming principles.
2) Object Oriented Programming:
Know the key concepts of OOP like inheritance, polymorphism, encapsulation, and abstraction, and how they are implemented in Java.
3) Java Collections Framework:
Familiarize yourself with the collection classes provided by Java, such as ArrayList, HashMap, and LinkedList, and understand their differences and use cases.
4) Exception Handling:
Learn how to handle exceptions in Java using try catch blocks, throwing exceptions, and creating custom exception classes.
5) Multithreading:
Understand the basics of creating and managing threads in Java, synchronization, and thread safety.
6) Java API:
Be comfortable working with the Java API documentation and understanding how to use built in classes and interfaces effectively.
7) JDBC (Java Database Connectivity):
Gain knowledge of connecting Java applications to a relational database using JDBC, executing SQL queries, and handling transactions.
8) Spring Framework:
Get an overview of the Spring Framework and its core features like dependency injection, AOP, and Spring MVC.
9) Hibernate:
Learn about Hibernate ORM framework for mapping Java objects to relational databases and performing CRUD operations.
10) Design Patterns:
Understand common design patterns like Singleton, Factory, Observer, and MVC, and how to apply them in Java programming.
11) Testing in Java:
Familiarize yourself with unit testing frameworks like JUnit and testing methodologies to ensure the quality of your code.
12) Java 8 Features:
Explore new features introduced in Java 8 like lambda expressions, functional interfaces, and stream API for more efficient and concise coding.
13) Web Development with Java EE:
Gain an understanding of Java Enterprise Edition (Java EE) technologies like Servlets, JSP, and web services for building robust web applications.
14) RESTful API Development:
Learn how to create RESTful APIs using frameworks like Spring Boot and how to consume them in Java applications.
15) Problem Solving Skills:
Practice solving coding problems and algorithmic challenges to improve your problem solving skills, which are crucial for technical interviews.
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