Java for Interview Preparation
Master essential Java concepts and features critical for technical interviews. Understanding these core principles will help you solve problems efficiently and write clean, maintainable code.
Core Java Fundamentals
Master the basics of Java syntax, data types, and control structures.
Object-Oriented Programming
Understanding classes, objects, inheritance, polymorphism, and encapsulation.
Collections Framework
Work with Java's powerful collection interfaces and implementations.
Key Topics:
Exception Handling
Handle errors gracefully with try-catch blocks and custom exceptions.
Strings & StringBuilder
Master string manipulation, immutability, and performance optimization.
Generics
Write type-safe and reusable code with generic classes and methods.
Multithreading & Concurrency
Create and manage threads for concurrent program execution.
Java 8+ Features
Leverage modern Java features like streams, lambdas, and functional interfaces.
JVM & Memory Management
Understand how Java manages memory and the JVM architecture.
Key Topics:
- •Heap vs Stack
- •Garbage Collection
- •JVM Architecture
- •Memory Leaks
- •Class Loading
Input/Output (I/O)
Read from and write to files, streams, and network connections.
Key Topics:
- •File I/O
- •Streams
- •Readers & Writers
- •Serialization
- •NIO
Design Patterns in Java
Implement common design patterns using Java best practices.
Common Interview Topics
Frequently asked Java concepts in technical interviews.
Key Topics:
- •equals() & hashCode()
- •Comparator vs Comparable
- •Abstract vs Interface
- •Final Keyword
- •Static Keyword