- What is Java?
- Syntax
- Variables
- Data Types
- Numbers
- Characters
- String
- StringBuffer
- StringTokenizer
- String vs StringBuffer vs StringBuilder
- Operators
- Unary
- Arithmetic
- Shift
- Relational
- Bitwise
- Logical
- Ternary
- Assignment
- Control Statements
- Decision Making
- Loops
- For
- While
- For Each
- Do While
- Break
- Continue
- OOPs
- Object
- Classes
- Inheritance
- Polymorphism
- Abstraction
- Encapsulation
- Association
- Aggregation
- Composition
- Modifier
- Access Modifiers
- default
- public
- private
- protected
- Non Access Modifiers
- static
- final
- abstract
- synchronized
- volatile
- Date and Time
- SimpleDateFormat
- Calendar
- Methods
- Method Overriding
- Method Overloading
- Files, Input & Output (I/O)
- File
- FileInputStream
- FileOutputStream
- FileReader
- FileWriter
- Scanner
- InputStreamReader
- DataInputStream
- BufferedReader
- Exceptions
- Checked Exception
- Unchecked Exception
- Try
- Catch
- Finally
- Throw
- Constructor
- Default/No-argument Constructor
- Parameterized Constructor
- Instance Initialization Block
- Static Initialization Block
- Interface
- Classes
- Abstract Class
- Inner Class
- Outer Class
- Nested Class
- Static Class
- Anonymous Class
- Generic Class
- Generics
- Generic Classes
- Generic Methods
- WildCards
- Regular Expressions
- Pattern
- Matcher
- Multi-Threading
- URL
- Packages
- Java Doc
- Database
- Operations
- Select Record
- Insert Record
- Delete Record
- Create Table
- Drop Table
- Update Record
- Clients / Libraries
- JDBC
- Hibernate
- JPA
- MongoClient
- Clickhouse
- XML
- Operations
- XML Parsing
- XPath Evaluator
- Local Name
- Clients / Libraries
- SAX
- DOM
- JAXB
- JSON
- Operations
- Json Parsing
- Serialize/ Deserialize
- Clients / Libraries
- JSON.simple
- GSON
- Jackson
- JSON-P
- JsonPath
- Excel
- Operations
- Create Sheet
- Read Sheet
- Write Sheet
- Clients / Libraries
- Apache POI
- JExcel
- CSV
- Operations
- Create Sheet
- Read Sheet
- Write Sheet
- Clients / Libraries
- Apache Commons CSV
- OpenCSV
- Images
- Logging
- Apache Log4j
- Configuration
- Logging Method
- Logging Levels
- Logback
- SLF4J
- API
- Apache HTTPClient
- Overview
- GET
- POST
- OkHttp
- Emails
- Java Mail
- Sending HTML Email
- Simple Java Mail
- Data Structures
- Overview
- Array
- Multidimensional Arrays
- List
- ArrayList
- LinkedList
- Vector
- Stack
- Stack
- Queue
- PriorityQueue
- BlockingQueue
- Map
- HashMap
- LinkedHashMap
- TreeMap
- Dictionary
- HashTable
- Properties
- Graph
- Tree
- Set
- SortedSet
- NavigableSet
- TreeSet
- HashSet
- LinkedHashSet
- Comparable
- Comparator
- Development Approaches
- Unit Testing
- Test-Driven Development (TDD)
- Behaviour Driven Development (BDD)
- Acceptance Test-Driven Development (ATDD)
- JSP
- Servlets
- Hibernate
- Spring Framework
- Java 8 & Above
- String Joiner
- Lambda Expression
- Stream API
- Date and Time API
JAVA
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