Java Tutorial

Attention all learners! This Java Tutorial is perfect for both beginners and experienced professionals. Whether you're just starting with Java or want to dive into advanced concepts, this free Java tutorial is here for you.

What is Java?

Java, developed by Sun Microsystems in 1995, is a widely-used, object-oriented programming language. It's used for Android development, web development, artificial intelligence, cloud applications, and more.

In this tutorial, we'll cover everything from basic Java syntax to advanced topics like object-oriented programming and exception handling. By the end, you'll have a solid understanding of Java and be ready to write your own applications. Let's start this comprehensive Java programming tutorial!

Get Started with Free Java Tutorial:

In this section, you'll find all the free resources you need to become proficient in Java programming.

Overview of Java

Basics of Java

Java Basic Syntax
First Java Program (Hello World)
Datatypes in Java
Primitive Vs Non-Primitive Datatypes
Java Identifiers
Operators in Java
Java Variables
Java Keywords
Scope of Variables
Wrapper Classes in Java

Input/Output in Java

How to take Input from users in Java
Scanner class in Java
BufferedReader class in Java
Scanner vs BufferedReader in Java
Ways to Read Input from Console in Java
Print Output in Java
print() Vs println() in Java
Formatted Outputs in Java

Flow Control in Java

Decision making in Java
If Statement in Java
If-Else Statement in java
If-Else-If ladder in Java
Loops in Java
For loop
While Loop
Do while loop
For each loop
Continue Statement in java
Break Statement In Java
Usage of Break in Java
Return Statement in Java

Operators in Java

Arithmetic Operator
Unary Operator
Assignment Operator
Relational Operator
Logical Operator
Ternary Operator
Bitwise Operator

Arrays in Java

Introduction to Arrays in Java
Arrays class in Java
Multi-Dimensional Array in Java
How to declare and initialize 2D arrays in Java
Jagged array in Java
Final Arrays in Java
Reflect Arrays in Java
Java util.Arrays Vs reflect.Arrays
Java Array Programs

Strings in Java

Introduction of Strings in Java
String class in Java Set-1 | Set-2
Why strings are immutable in Java?
StringBuffer class in Java
StringBuilder class in Java
Strings vs StringBuffer vs StringBuilder in Java
StringTokenizer class in Java Set-1 | Set-2
StringJoiner in Java
Java String Programs

OOPS in Java

Java OOPS refers to object-oriented programming concepts implemented in the Java programming language. Java OOP features include classes, objects, inheritance, polymorphism, and encapsulation that enable modular and efficient code development. Understanding Java UPS is important to create a highly reliable and scalable software application.

OOPS Concept in Java
Why Java is not a purely Object-Oriented Language?
Classes and Objects
Naming Convention in Java
Methods in Java
Access Modifiers in Java
Constructors in Java
Four pillars of OOPS in Java
Inheritance in Java
Abstraction in Java
Encapsulation in Java
Polymorphism in Java
Interfaces in Java
This reference in Java

Classes of Java

Java classes are models for creating objects and defining their properties and behavior. They are the building blocks of Java programs, allowing you to write modular, reusable code. Classes can contain fields, methods, constructors, and nested classes, providing a wide range of functionality and flexibility.

Classes and Objects
Understanding classes and objects in Java
Class vs interface
Singleton class in java
Object class in java
Inner class in java
Abstract classes in java
Throwable class in java

Interfaces in Java

An interface in Java is an abstract type that defines a set of methods that a class must implement. They provide the ability to achieve abstraction, multiple inheritance, and loose coupling in Java programs. Interfaces help define common behavior and functionality that can be used by different classes, resulting in more modular and reusable code. Mastering the Java interface is essential to creating flexible and extensible software applications.

Java Interfaces
Interfaces and Inheritance in Java
Class Vs Interface in Java
Functional Interface
Nested Interface
Marker Interface
Comparator Interface

Methods in Java

Introduction to methods in Java
Different method calls in Java
Static methods Vs Instance methods in Java
Abstract methods in Java
Method Overriding in Java
Method Overloading in Java
Method Overloading Vs Method Overriding

Packages in Java

Java Packages
How to create a package in Java
java.util package
java.lang package
java.io package

Collection Framework in Java

Java Collection Framework
Collections class in Java
Collection Interface in Java
List Interface in Java
Queue Interface in Java
Map Interface in Java
Set Interface in Java
SortedSet Interface in Java
Deque Interface in Java
Comparator in Java
Comparator Vs Comparable in Java
Iterator in Java

Collection Classes in Java

ArrayList in Java
Vector class in Java
Stack class in Java
LinkedList in Java
Priority Queue in Java
HashMap in Java
LinkedHashMap in Java
Dictionary in Java
HashTable in Java
HashSet in Java
TreeSet in Java
LinkedHashSet in Java

Memory Allocation in Java

Java Memory Management
How are Java objects stored in memory
Stack vs Heap memory allocation
Types of memory areas allocated by JVM
Garbage Collection in Java
Heap and Stack memory allocation
Types of JVM Garbage Collectors in Java
Memory leaks in Java
Java Virtual Machine(JVM) Stack Area

Exception Handling in Java

Exceptions in java
Types of Exceptions
Checked Vs Unchecked Exceptions
Try, Catch, Finally, throw, and throws
Flow control in Try catch block
Throw vs Throws
Final vs Finally vs Finalize
User-defined custom exception
Chained Exceptions
Null pointer Exceptions
Exception handling with method Overriding

Multithreading in Java

Introduction to Multithreading in Java
Lifecycle and Stages of a Thread
Thread Priority in Java
Main Thread in Java
Thread class
Runnable interface
How to name a thread
start() method in thread
run() vs start() Method in Java
sleep() method
Daemon thread
Thread Pool in Java
Thread Group in Java
Thread Safety in Java
ShutdownHook
Multithreading Tutorial

Synchronization in Java

Java Synchronization
Importance of Thread synchronization in Java
Method and Block Synchronization in Java
Local frameworks vs thread synchronization
Atomic Vs Volatile in Java
Atomic Vs Synchronized in Java
Deadlock in Multithreading
Deadlock Prevention and Avoidance
Lock Vs Monitor in Concurrency
Reentrant Lock

File Handling in Java

File Class in java
How to create files in java
How to read files in java
How to write on files in java
How to delete a file in java
File Permissions
FileReader
File Writer
FileDescriptor class
RandomAccessFile class

Java Regex

Introduction to Java Regex
How to write Regex expressions
Matcher class
Pattern class
Quantifiers
Character class

Java IO

Introduction to Java IO
Reader Class
Writer Class
FileInput stream
File Output stream
BufferedReader Input Stream
BufferedReader Output stream
BufferedReader vs Scanner
Fast

Java Networking

Introduction to Java Networking
TCP architecture
UDP architecture
IPV4 Vs IPV6
Connection-oriented Vs connectionless protocols
Socket programming in Java
Server Socket class
URL class and methods

Java SE 8 Features

Lambda Expressions
Streams API
New Date/Time API
Default Methods
Functional Interfaces
Method references
Optional class
Stream Filter
Type Annotations
String Joiner

Java Date & Time

Date Class in Java
Methods of the Date class
Java Current Date and time
Compare dates in Java

Java JDBC

Introduction to Java JDBC
JDBC Driver
JDBC Connection
Types of Statements in JDBC
JDBC Tutorial

Java Miscellaneous

Introduction to Reflection API
Java IO Tutorial
JavaFX Tutorial
Java RMI
How to Run Java RMI application?
Java 17 New Features

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