Java Interview - Intermediate Level
For developers with 2-4 years of Java experience. Master multithreading, streams, lambdas, Spring Boot, design patterns, and advanced Java features.
25-30 minutes
2-4 years of Java experience
About this Java interview
Elevate your Java skills. Practice Java 8+ features like streams and lambdas, multithreading and concurrency, design patterns, Spring Boot basics, and advanced collections. Perfect for mid-level backend developer roles.
Who is this for?
Mid-level Java developers
Backend engineers with Java experience
Spring Boot developers
Those preparing for mid-senior Java roles
What you'll practice
Using Java 8+ features (streams, lambdas)
Working with multithreading
Implementing design patterns
Building with Spring Boot
Advanced collections usage
Writing efficient Java code
Topics covered
Java 8+ Features
Lambdas and functional interfaces
Streams API
Optional class
Method references
Multithreading
Thread and Runnable
ExecutorService
Synchronization
Thread safety
Design Patterns
Singleton, Factory, Builder
Observer, Strategy
SOLID principles
Best practices
Spring Boot
Dependency Injection
REST controllers
Spring annotations
Configuration
Example questions
Q:
How do you use the Streams API in Java?
Q:
What is the difference between Thread and Runnable?
Q:
Explain how dependency injection works in Spring Boot
Q:
What are lambda expressions and how do you use them?
Q:
How do you make a class thread-safe?
Q:
What is the Singleton pattern and how do you implement it?
Preparation tips
Master Java 8+ features
Practice with Streams API
Learn multithreading concepts
Study design patterns
Build projects with Spring Boot
Understand SOLID principles
Continue your journey
Frequently asked questions
What is the Java Interview - Intermediate Level?
For developers with 2-4 years of Java experience. Master multithreading, streams, lambdas, Spring Boot, design patterns, and advanced Java features.
Who is this java intermediate interview for?
This interview is perfect for: Mid-level Java developers, Backend engineers with Java experience, Spring Boot developers, Those preparing for mid-senior Java roles. It's designed for developers with 2-4 years of Java experience.
How long does the java intermediate interview take?
The interview typically takes 25-30 minutes to complete.
What topics are covered in this java interview?
You'll practice: Using Java 8+ features (streams, lambdas), Working with multithreading, Implementing design patterns, and more.
Is this a real or AI-powered interview?
This is an AI-powered mock interview that simulates real technical interviews. The AI adapts to your responses and provides realistic interview questions for java intermediate level.
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