Java Programming IN JAVA PROGRAMMING ( S-JAVA-119 )

Introduction

• Java Introduction
  • History and evolution of Java
  • Java's place in the software ecosystem
• Features of Java
  • Platform independence (Write Once, Run Anywhere)
  • Object-Oriented Programming
  • Automatic Garbage Collection
  • Multithreading capabilities
  • Rich API and libraries
• Environment Setup
  • Installing JDK and IDE setup (Eclipse, IntelliJ, NetBeans)
  • Understanding JDK, JRE, and JVM
  • Writing and executing the first Java program
• Basic Syntax
  • Structure of a Java program (classes, methods, etc.)
  • Main method declaration
  • Hello World example

Access Modifiers

• Access Control Modifiers
  • Public, Private, Protected, Default
  • Rules and scopes for access modifiers
• Non-Access Modifiers
  • Static, Final, Abstract, Synchronized, Volatile
• Packages in Java
  • Built-in packages (java.util, java.io, etc.)
  • Creating custom packages
  • Importing packages

Basics of Objects and Classes

• OOPs Concepts
  • Encapsulation, Abstraction, Inheritance, and Polymorphism
• Objects and Its Advantages
  • Creating objects in Java
  • Advantages of using objects in programming
• Creating a Class
  • Defining a class and its properties (fields) and behaviors (methods)
• Creating Instances/Objects
  • Instantiating objects using the new keyword
  • Constructor usage

Variables and Methods

• Local, Instance, and Static Variables
  • Scope and lifespan of different types of variables
  • Initialization and access rules
• Parameterized and Non-Parameterized Methods
  • Method declaration and calling
  • Passing arguments to methods
  • Return types and void methods
• Returning Values from Methods
  • Returning primitive and reference types
  • Method signature and return type compatibility
• Method Overloading
  • Creating multiple methods with the same name but different parameters

Constructors

• Parameterized Constructors
  • Syntax and usage
  • Initialization of objects with constructor arguments
• Non-Parameterized Constructors
  • Default constructor vs. user-defined constructors

Data Types

• Primitive Data Types
  • int, boolean, char, double, float, long, byte, short
  • Memory consumption and size details
• Reference Data Types
  • Objects and arrays
  • Understanding reference variables
• Java Literals
  • Integer, floating-point, boolean, character literals
  • String literals

Operators

• Arithmetic Operators
  • +, -, *, /, %, unary operators
• Relational Operators
  • ==, !=, >, <, >=, <=
• Logical Operators
  • &&, ||, !
• Assignment Operators
  • =, +=, -=, *=, /=, %=

Control Flow Statements

• Conditional Statements
  • if, else if, else, switch
• Looping Statements
  • for, while, do-while
• Break and Continue Statements

Arrays

• One-dimensional Arrays
  • Declaration, initialization, and access
• Multi-dimensional Arrays
  • Arrays of arrays (2D, 3D, etc.)
• Array Manipulation
  • Sorting, searching, and traversing arrays

String Handling

• String Class
  • Creating and initializing strings
  • String methods (length(), charAt(), equals(), etc.)
• StringBuffer and StringBuilder
  • Mutability and performance differences

Exception Handling

• Types of Exceptions
  • Checked vs. Unchecked exceptions
• Try-Catch-Finally
  • Handling exceptions gracefully
  • Nested try-catch blocks
• Throw and Throws
  • Throwing exceptions manually
  • Declaring exceptions in methods
• Custom Exceptions
  • Creating user-defined exceptions

Inheritance

• Single Inheritance
  • Extending a class and accessing inherited properties and methods
• Method Overriding
  • Polymorphism through overriding methods
• Super Keyword
  • Accessing parent class members

Polymorphism

• Compile-time Polymorphism (Method Overloading)
  • Overloading constructors and methods
• Runtime Polymorphism (Method Overriding)
  • Dynamic method dispatch
• Interfaces
  • Defining and implementing interfaces
  • Interface vs. Abstract class

Abstract Classes

• Abstract Methods and Classes
  • Defining and implementing abstract methods
  • Usage and limitations of abstract classes

Java Collections Framework

• List, Set, and Map Interfaces
  • ArrayList, LinkedList, HashSet, TreeSet, HashMap, TreeMap
• Iterator Interface
  • Iterating over collections
• Collections Class
  • Sorting and manipulating collections

Multithreading

• Introduction to Multithreading
  • Creating threads using Thread class and Runnable interface
• Thread Lifecycle
  • States of a thread: new, runnable, waiting, etc.
• Synchronization
  • Synchronizing methods and blocks to prevent thread interference
• Thread Communication
  • wait(), notify(), notifyAll() methods

Java I/O (Input/Output)

• File Handling
  • Reading and writing to files using FileReader, FileWriter, BufferedReader, BufferedWriter
• Serialization and Deserialization
  • Object serialization using Serializable interface

Advanced Topics (Optional)

• Lambda Expressions
  • Syntax and use cases for lambda expressions in functional programming
• Streams API
  • Filtering, mapping, and reducing data with streams
• Java 8+ Features
  • Introduction to the new features like Optional, Date/Time API

PRE REQUISITES : Basic Understanding of Object Oriented Programming