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Java Core Concepts Interview Questions

Last Updated: 01 April 2026

Java is one of the most popular programming languages, known for its simplicity and versatility. Mastering its core concepts is essential for any aspiring developer.The fo...read more

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Java

Java 8

Technical Interview Questions

Java Concurrent Data Handling & Debugging Best Practices Interview Questions

Last Updated: 25 August 2025

This page covers advanced Java interview questions on concurrency, focusing on safe data handling and debugging. It includes topics like thread-safe collections (Concurren...read more

Java-Multithreading

Java 8

Interview Prep

Java Concurrency Tools & Modern Java Techniques Interview Questions

Last Updated: 25 August 2025

This focuses on advanced interview questions around Java's concurrency utilities and modern parallelism techniques. It covers the Executor framework, thread pools, Callabl...read more

Java-Multithreading

Java 8

Interview Prep

Java Multithreading Fundamentals & Lifecycle Interview Questions

Last Updated: 25 August 2025

This explores essential and advanced interview questions on Java multithreading, focusing on thread creation using Thread vs Runnable, lifecycle states, and core thread me...read more

Java-Multithreading

Java 8

Interview Prep

Java Security, Monitoring & DevOps Interview Questions

Last Updated: 25 August 2025

This highlights crucial interview questions related to security, observability, and deployment practices in Java microservices. It covers authentication and authorization ...read more

Java

Java 8

Microservices

Java Service Communication, Data Management & Resilience Interview Questions

Last Updated: 28 August 2025

Java Service Communication refers to how different microservices talk to each other, either through REST APIs, gRPC, or messaging systems like Kafka and RabbitMQ. Data Man...read more

Java 8

Microservices

Interview Prep

Java Advanced Topics Interview Questions

Last Updated: 25 August 2025

This covers key advanced Java interview topics with questions and in-depth answers1. What is Exception Handling How many types of exceptions can occur in a Java program?...read more

Java Collections & Generics Interview Questions

Last Updated: 17 December 2025

Java Collections Framework (JCF) is a standard library that provides data structures and algorithms to store, retrieve and manipulate data efficiently. It is one of the mo...read more

Java OOP Interview Questions

Last Updated: 11 December 2025

Java is a pure object-oriented programming language (with minor exceptions like primitives). OOP is one of the most frequently tested topics in interviews. It models real-...read more

Java Basics & Program Flow Interview Questions

Last Updated: 17 December 2025

Java is an object-oriented programming language widely used in enterprise applications, Android development, and backend systems. Understanding Java fundamentals is crucia...read more

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Java

Java 8

Technical Interview Questions

AspectJ Annotations Vs XML Configuration

Last Updated: 21 August 2025

Understanding the difference between AspectJ Annotations and XML Configuration in Spring AOP Aspect-Oriented-Programming is a most powerful programming paradigm in Spring...read more

Java

Java 8

Deserialize Java 8 LocalDateTime with JacksonMapper

Last Updated: 23 July 2025

In Java applications, handling date and time efficiently is crucial. Java 8 introduced a new date and time API which includes the LocalDateTime class. When working with RE...read more

Top 30 Java 8 Interview Questions and Answers for 2025

Last Updated: 21 August 2025

Java 8 introduced a host of powerful features that have significantly enhanced the Java programming language. Introducing new features such as Lambda Expressions, Stream A...read more

How to Force Selenium WebDriver to Click on Element which is Not Currently Visible?

Last Updated: 28 April 2025

A programming language that is used to execute a set of instructions that a computer can understand and execute to perform various tasks is known as Java. Java can be cont...read more

How to Scroll an Element into View in Selenium?

Last Updated: 23 July 2025

A high-level programming language that helps users in building web applications is called Java. It is not only used for creating web applications but it can also be used f...read more

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