Basic data types

Reference data type

variable declaration

variable assignment

variable scope

arithmetic operators

Relational operators

Logical Operators

Bit operators

assignment operator

conditional judgment statement

Loop control statement

Jump control statement

one-dimensional array

Multidimensional Arrays

Array sort

object-oriented concepts

Object-oriented features

Class definition

Creation of objects

Object properties and methods

Encapsulation concept

Encapsulation implementation

inheritance concept

Inherited implementation

polymorphic concept

Polymorphic implementation

abstract class

interface

member inner class

local inner class

anonymous inner class

abnormal concept

Anomaly classification

trycatch statement

finally statement

throw statement

throws statement

Custom exception class

Custom exception handling

Collection framework concept

Collection framework classification

ArrayList

LinkedList

Vector

HashSet

TreeSet

HashMap

TreeMap

Hashtable

sort operation

Find operation

Synchronous operation

Generic concept

Benefits of generics

Generic class definition

Generic class usage

Generic method definition

Generic method usage

wildcard concept

Wildcard usage

I/O stream concept

I/O flow classification

File class

File operations

InputStream

OutputStream

Reader

Writer

BufferedInputStream

BufferedOutputStream

BufferedReader

BufferedWriter

InputStreamReader

OutputStreamWriter

Serialization

Deserialization

Multithreading concept

Multithreading benefits

Inherit the Thread class

Implement the Runnable interface

New status

ready state

Operating status

blocking state

state of death

sync method

synchronized code block

sync lock

wait() and notify() methods

join() method

Thread pool concept

Thread pool usage

Network programming concepts

Network programming classification

Socket class

ServerSocket class

URL class

URLConnection class

HttpURLConnection class

HttpClient class

Database programming concepts

Database programming classification

JDBC Overview

JDBC connection database

JDBC operation database

JDBC transaction processing

MySQL database overview

MySQL database installation and configuration

MySQL database operations

Oracle Database Overview

Oracle database installation and configuration

Oracle database operations

Framework technology concept

Framework technology classification

Spring framework overview

Spring framework core concepts

Spring framework usage

Struts2 framework overview

Struts2 framework core concepts

Struts2 framework usage

Hibernate framework overview

Hibernate framework core concepts

Hibernate framework usage

MyBatis framework overview

MyBatis framework core concepts

MyBatis framework usage

design pattern concept

Design pattern classification

Overview of Singleton Pattern

Singleton pattern implementation

Factory Pattern Overview

Factory pattern implementation

Builder Pattern Overview

Builder pattern implementation

Proxy Pattern Overview

Proxy pattern implementation

Observer Pattern Overview

Observer pattern implementation

Strategy Pattern Overview

Strategy pattern implementation

Template Method Pattern Overview

Template method pattern implementation

Chain of Responsibility Model Overview

Responsibility chain model implementation

Decorator pattern overview

Decorator pattern implementation

Adapter pattern overview

Adapter pattern implementation

Overview of the Iterator Pattern

Iterator pattern implementation

Command mode overview

Command mode implementation

State Pattern Overview

State pattern implementation

Overview of memo mode

Memo mode implementation

Visitor pattern overview

Visitor pattern implementation

Interpreter mode overview

Interpreter mode implementation

Overview of Flyweight Mode

Flyweight mode implementation

Bridge pattern overview

Bridge pattern implementation

Combination mode overview

Combination mode implementation

Facade Pattern Overview

Facade pattern implementation

Proxy Pattern Overview

Proxy pattern implementation

Chain of Responsibility Model Overview

Responsibility chain model implementation

Decorator pattern overview

Decorator pattern implementation

Adapter pattern overview

Adapter pattern implementation

Overview of the Iterator Pattern

Iterator pattern implementation

Command mode overview

Command mode implementation

State Pattern Overview

State pattern implementation

Overview of memo mode

Memo mode implementation

Visitor pattern overview

Visitor pattern implementation

Interpreter mode overview

Interpreter mode implementation

Overview of Flyweight Mode

Flyweight mode implementation

Bridge pattern overview

Bridge pattern implementation

Combination mode overview

Combination mode implementation

Facade Pattern Overview

Facade pattern implementation;