Junior
- Ποια είναι η διαφορά μεταξύ primitive types and wrapper classes;
- Ποια είναι η διαφορά μεταξύ == and equals();
Practice Java Backend Developer Interviews
Use this Java backend track to rehearse spoken answers for technical interviews. The setup keeps Java selected so you can continue into interview configuration without repeating the technology choice.
- Practice speaking, not only reading answers
- Get technical feedback after each answer
- Improve the way your English sounds in interviews
How EngineerSpeak helps
Voice practice with technical and English feedback
Answer real backend interview questions out loud, then review technical completeness, missing points, corrected English and a more natural version of your answer.
- Practice speaking, not only reading answers
- Get technical feedback after each answer
- Improve the way your English sounds in interviews
Practice area
What this track covers
Java backend interviews test framework fluency, language fundamentals and production service judgment.
- Core language and runtime behavior
- Web framework, SQL and testing
- Performance, reliability and production debugging
Practice area
How to structure spoken answers
Practice turning what you know into a clear interview answer: define the concept, explain the runtime behavior and connect it to trade-offs.
- Core Java, Spring Boot, SQL, concurrency, JVM behavior, Kafka and production systems
- Technical clarity and examples
- Trade-offs and production signals
Interview questions
Παραδείγματα ερωτήσεων:
These examples are selected for Ελληνικά content and rotate by page language, so every localized setup page has distinct interview questions.
Middle
- Τι είναι sealed classes;
- Τι είναι reflection;
Senior
- Τι είναι livelock;
- Τι είναι thread starvation;