Core Java

Key highlights

What you gain

• In-depth understanding of Core Java concepts.
• Ability to use collections, generics and streams effectively.
• Working knowledge of multithreading and the JVM.
• Strong preparation for Java developer interviews.

Course syllabus

8 modules, taught step by step from fundamentals to practice.

1. 1
   Java Language Deep Dive

   JVM architecture, memory areas (heap and stack), garbage collection overview, and class loading.

2. 2
   OOP Concepts in Depth

   Encapsulation, inheritance, polymorphism, abstraction, interfaces vs abstract classes, and design best practices.

3. 3
   String, Wrapper and Immutable Classes

   String pool, immutability, StringBuilder and StringBuffer, wrapper classes and autoboxing.

4. 4
   Exception Handling and I/O

   Checked and unchecked exceptions, custom exceptions, try-with-resources, and file and stream I/O.

5. 5
   Collections Framework

   List, Set, Map, Queue, Comparable and Comparator, iterators, and hashing concepts.

6. 6
   Generics, Lambdas and Streams

   Generics, functional interfaces, lambda expressions, method references, Stream API and Optional.

7. 7
   Multithreading and Concurrency Basics

   Threads, Runnable, synchronization, thread lifecycle, and the executor framework overview.

8. 8
   Interview Preparation and Practice

   Commonly asked Java questions, coding problems and mock discussions.

Tools & technologies

Explore potential career paths

Career paths shown are illustrative roles that use these skills; outcomes depend on your effort, background and the job market.

Common questions