Some content (like Core Java notes from other faculty) may be behind a sign-in wall on sites like scribd.com .
A HashMap works on the principles of using hashCode() and equals() methods. When an element is inserted: The key’s hashCode() calculates a bucket index.
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Catch specific subclasses to avoid swallowing unrelated errors. core java notes by natraj sir pdf free
Mutable vs. immutable objects and their performance implications.
The Collections Framework provides readymade architecture for storing and manipulating groups of objects. Memorizing how and when to use these data structures is vital for coding interviews.
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Holds the address of the JVM instruction currently being executed by a thread. The Execution Engine The search results frequently point to "Core Java
Multiple methods in the same class share the same name but have different parameter lists (different count, type, or order).
Creating, importing, and organizing sub-packages to avoid naming conflicts.