Java Interview Questions - for FRESHERS

Java Interview Questions - for FRESHERS

Sridhar Raj P Sridhar Raj P

Sridhar Raj P

?? On a mission to teach 1 million students | Developer & Mentor | 6,000+ Students ?? | JavaScript | React JS | Redux | Python | Java | Springboot | MySQL | Self-Learner | Problem Solver

发布日期: 2024年5月22日
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Basic Questions

  1. What is Java?
  2. What are the main features of Java?
  3. What is the JVM?
  4. What is JDK and JRE?
  5. What are Java's access specifiers?

Object-Oriented Concepts

  1. What is inheritance?
  2. What is polymorphism?
  3. What is encapsulation?
  4. What is abstraction?
  5. What is an interface?

Advanced Concepts

  1. What is the difference between an abstract class and an interface?
  2. What is a constructor in Java?
  3. What is the difference between method overloading and method overriding?
  4. What is a package in Java?
  5. What is a static keyword?

Memory Management

  1. What is garbage collection in Java?
  2. What is the finalize() method?
  3. What are the types of memory areas allocated by JVM?
  4. What is a ClassLoader?
  5. What are the different types of ClassLoaders in Java?

Collections and Data Structures

  1. What is the Java Collections Framework?
  2. What is the difference between ArrayList and LinkedList?
  3. What is a Map in Java?
  4. What is the difference between HashMap and TreeMap?
  5. What is the difference between HashSet and TreeSet?

Concurrency

  1. What is multithreading in Java?
  2. What are the different ways to create a thread in Java?
  3. What is synchronization in Java?
  4. What is a deadlock in Java?
  5. What are thread-safe collections in Java?

These questions cover a broad range of Java topics and should give you a solid foundation for preparing for a Java interview.

Venkata Harika

Junior Java Developer | IT Employee | Web and Java Backend Enthusiast

7 个月

very helpful

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Ankit Dubey

CSE 2024 || CPP || Java || JavaScript||DSA ||2? LeetCode | 200+ Problem @(LeetCode) | ????

9 个月

It really helpful

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Pavithra M

Data Analyst | SQL | Excel | Power BI | Tableau | Python | R | Data Engineer | SEO Expert | Social Media Marketing | Content Writer | Link Building | Campaigns | SEO Team Lead | Analytics and Reporting

9 个月

Very helpful!

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Surya K

Attended NPR College of Education

10 个月

Great advice!

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