By Durga Sir — Core Java Complete Notes

Locking mechanisms to prevent data inconsistency. 7. Java Collection Framework Detailed hierarchy of List, Set, and Map. Cursors (Enumeration, Iterator, ListIterator).

Durga Sir's Core Java Complete Notes are useful for several reasons: core java complete notes by durga sir

The notes are well-structured and easy to understand, making it a valuable resource for beginners and experienced programmers alike. Locking mechanisms to prevent data inconsistency

File input/output is used to read and write data to files: Cursors (Enumeration, Iterator, ListIterator)

Durga Sir has a unique teaching style. Unlike standard textbooks (like Head First Java or Herbert Schildt) that might focus on "how to write code," Durga Sir focuses heavily on internal logic .

If you have zero programming background (you don't know what a variable or a loop is), these notes might feel overwhelming. They move fast. They are best suited for people who have a basic idea of C or C++ and want to migrate to Java.

How to create your own exception class by extending Exception .