Core Java & JVM Basics
14+ curated interview questions.
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Java interview questions and answers for beginners to advanced candidates.
Total questions
154+
Theory · MCQs · coding
Sets & tracks
11+
Structured for revision
Topics covered
60+
In-depth roadmap
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
14+ curated interview questions.
15+ curated interview questions.
13+ curated interview questions.
14+ curated interview questions.
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Why is Java considered platform independent?
Pick the correct mapping:
Which area holds per-thread call frames (locals, operand stack)?
Explain the delegation model of classloaders and why it matters for security.
What does the JIT do at runtime?
Which is the canonical Java entry point?
What is the String pool and how do string literals vs new String(…) behave?
Which statement about wrappers is TRUE?
Default value of an uninitialized instance boolean field is:
Differentiate this(...) and super(...) constructor calls and their placement rules.
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