The knowledge sharing zone - Guruzon.com
Java Basics

Java Basics

This tutorial contains the details basic java programming concepts and OOP concepts and implementation. It contains details about class, interface, keywords, method overloading and overriding, file handling, string handling, formatting, parsing and regex etc.. of java with examples.

Class and Object

This tutorial contains the details about how to declare class and object in java, It also contains the details about javabean and use of modifiers with class in java. read more >>

Array and Interface

This tutorial contains the details about how to declare array and interface in java, It also contains the details about rules for defining interface and multi dimensional array in java. read more >>

Enums

This tutorial contains the details about how to declare enums in java, It also contains the details about rules for defining enum and use and advantages of enums and when to use enum in java. read more >>

Autoboxing and Wrappers

This tutorial contains the details about what is autoboxing, auto unboxing and wrapper classes in java. It contains the different examples of autoboxing feature and use of wrapper classes in java. read more >>

Access Modifiers

This tutorial contains the details about various java access and visibility modifiers. It also contains the use and examples for each modifiers in java. read more >>

Object Oriented Concepts

This tutorial contains the details about various OOP (Object Oriented Programming) concepts of Java like IS-A and HAS-A relationships, method overloading and overriding, Inheritance and Composition etc.. read more >>

Variable Types and Scopes

This tutorial contains the details about variable types and scopes in java, It contains the details about stack and heap memory variables, variable scope and pass by value and pass by reference mechanism in java. read more >>

Garbage Collector

This tutorial contains the various information about Garbage Collector, Like - Use and responsibilities of garbage collector, How garbage collector works, its related tools and algorithm etc.. read more >>

Operators

This tutorial contains the details about various operators available in java with different examples (Eg. Assignment operators, Rational operators, Arithmetic operators, Conditional operators, instanceof operators, logical operators and ternary operators). read more >>

Exceptions

This tutorial contains the details about exception handling in java and different types of exceptions and errors in java with examples and how to create custom exception in java. read more >>

String and StringBuffer

This tutorial contains the details about String, StringBuffer and StringBuilder classes in java with examples and their usage and difference. read more >>

Inner Classes

This tutorial contains the details about inner classes in java with examples and source code. When to use inner class and rules related to inner class. read more >>

Annotations

This tutorial contains the details about annotations in java like What is annotations, Use of annotations and How to define custom annotations in java. read more >>

Programs

This page contains the various programs written in Java, Solution for many different problem definitions with the source code. read more >>

Java Interview Questions and Answers

This page contains the various popular interview questions with their answers for Core Java Basic Concepts and Programming Concepts. read more >>

Java Interview Questions for experienced

This page contains java interview questions and answers for experienced developer or programmers. read more >>

OCJP Question and Answers

This page contains the questions and answers for OCJP 1.5+ (Oracle Certified Java Programmer) exam. It contains lots of different kind of objective questions with answers. read more >>