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Commits on Oct 21, 2025

• Fixed capitalization in 'Next questions' sections

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Commits on Jan 17, 2025

• What do you know about `try`-`catch`-`finally`? (reworked)

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Commits on Oct 10, 2024

• What do you know about access modifiers in Java (reworked)

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Commits on Oct 2, 2024

• What is the difference between final, finally and finalize (reworked)

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Commits on Sep 17, 2024

• What is the difference between abstract class and interface?

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Commits on Aug 1, 2024

• Moved "What is functional interface" answer to Kotlin

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Commits on Jun 26, 2024

• Typos corrected

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Commits on Feb 23, 2024

• The answer "What is the difference between overriding and overloading" reworked

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Commits on Dec 7, 2023

• "Describe List interface" answer improved

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Commits on Oct 20, 2023

• Moved "What is memory leak" answer to correspondent folder

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Commits on Oct 12, 2023

• "Next questions" section is added in "What is volatile keyword" answer

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Commits on Aug 4, 2023

• Double check singleton pattern

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Commits on Jul 26, 2023

• Stream interface in Java

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Commits on Jul 20, 2023

• Iterator interface in Java

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Commits on Jul 10, 2023

• Add Next questions section to Describe Queue interface answer

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Commits on Jun 19, 2023

• Deque Java Collection

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Commits on May 1, 2023

• Added new links to `What do you know about generics` answer

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Commits on Apr 26, 2023

• What is enum answer improved

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Commits on Apr 5, 2023

• Interface in Java

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Commits on Mar 30, 2023

• Added "Next Questions" section to "What do you know about Generics?" answer

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Commits on Mar 21, 2023

• Java Queue interface

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Commits on Jan 13, 2023

• Java Wildcard

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Commits on Jan 10, 2023

• Java Generics

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Commits on Jul 27, 2021

• Do objects get passed by reference or value

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Commits on Jun 11, 2021

• Default method in interface

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Commits on May 20, 2021

• Java record

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Commits on Feb 2, 2021

• Hashtable vs ConcurrentHashMap

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Commits on Jan 28, 2021

• Map interface

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Commits on Jan 27, 2021

• Set interface

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Commits on Jan 26, 2021

• LinkedHashMap

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Commits on Jan 21, 2021

• ConcurrentHashMap

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Commits on Jan 11, 2021

• Fixed typos

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Commits on Dec 28, 2020

• Hashtable

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Commits on Dec 25, 2020

• EnumMap Java

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Commits on Dec 24, 2020

• TreeMap

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