Core Java Programming

Master the fundamentals of Java including syntax, OOP principles, collections, and multithreading.

Basic Concepts

Primitive types (int, float, char, boolean) and reference types. Type casting and constants.

If-else, switch, loops (for, while, do-while), break and continue statements.

Single and multidimensional arrays, String class, StringBuilder, common methods.

Binding data and methods together using classes and access modifiers.

Code reusability using extends keyword and method overriding.

Method overloading and overriding for runtime and compile-time flexibility.

Abstract classes and interfaces to achieve 100% abstraction.

List, Set, Map, HashMap, ArrayList, Iterator and generics.

Try-catch blocks, throw/throws, custom exceptions, finally block.

Thread class, Runnable interface, synchronization, thread lifecycle.

FileReader, FileWriter, BufferedReader, serialization basics.