-History and Features of Java

-Java Development Kit (JDK),
Java Runtime Environment (JRE), and Java Virtual Machine (JVM)

-Setting Up the Development Environment

-Writing, Compiling, and Running a Simple Java Program

-Java Syntax and Structure

-Data Types and Variables

-Keywords and Identifiers

-Operators (Arithmetic, Relational, Logical, Bitwise)

-Conditional Statements (if, if-else, switch)

-Looping Statements (for, while, do-while)

-Introduction to Arrays

-Single-Dimensional Arrays

-Multi-Dimensional Arrays

-Array Operations (Initialization and Access, Iteration)

-Introduction to OOP Principles (Encapsulation, Inheritance, Polymorphism, Abstraction)

-Classes and Objects

-Fields and Methods

-Method Declaration and Invocation

-Constructors and Their Usage

-The this Keyword

-Inheritance (extends Keyword, Method Overriding, super Keyword)

-Polymorphism (Method Overloading, Runtime Polymorphism)

-Encapsulation (Private Fields, Public Methods, Getters and Setters)

-Abstraction (Abstract Classes and Methods, Interfaces)

-Packages (Creating and Using Packages, import Statement)

-Access Modifiers (Default, Public, Private, Protected)

-Introduction to Exceptions (Types of Exceptions: Checked and Unchecked)

-Handling Exceptions (try, catch, finally Blocks)

-Throwing Exceptions (throw and throws Keywords)

-Creating Custom Exceptions

-String Class (Creating and Manipulating Strings)

-StringBuffer and StringBuilder (Differences, Common Methods)

-String Methods (e.g., length(), charAt(), substring())

-StringTokenizer

-Introduction to Collections

-List Interface (ArrayList, LinkedList)

-Set Interface (HashSet, LinkedHashSet, TreeSet)

-Map Interface (HashMap, LinkedHashMap, TreeMap, Hashtable)

-Iterators

-File Handling (File Class and Methods)

-Byte Streams and Character Streams (InputStream, OutputStream, Reader, Writer)

-Reading and Writing Files (FileInputStream, FileOutputStream, FileReader, FileWriter)

-BufferedReader and BufferedWriter

-Introduction to Multithreading

-Thread Class and Runnable Interface (Creating and Running Threads)

-Thread Lifecycle

-Thread Methods (e.g., start(), run(), sleep(), join())

-Synchronization (Synchronized Methods and Blocks, wait(), notify(), notifyAll())

-Introduction to JDBC

-JDBC Drivers

-Connecting to a Database

-Executing SQL Queries (Statement, PreparedStatement, CallableStatement)

-Handling Query Results (ResultSet, ResultSetMetaData)