1-1 Introduction to Java language

1-2 Introduction to JRE and JDK

2-1 Download and installation of JDK under Windows

2-2 Download and installation of JDK under Mac OSX

2-3 Download and installation of Eclipse

2-4 Install function extension plug-in for Eclipse

2-5 Create and run Java projects

2-6 The structure of a Java project

2-7 Import and export of Java projects

3-1 Commonly used output debugging techniques in Java

3-2 Java operation skills in Eclipse

4-1 Get to know Eclipse

4-2 Eclipse derivatives

4-3 Download and install Eclipse

4-4 Install function extension plug-in for Eclipse

5-1 Summary of this lesson

5-2 An overview of computer systems

5-3 Conversion between hexadecimal and other bases

5-4 Conversion between binary and other bases

5-5 Conversion between decimal and other base systems

6-1 Basic data types

6-2 Definition of variables and reasons for using them

6-3 Naming, defining and initializing variables

6-4 Use variables to simplify calculations

6-5 Use variables to store multiple types of data

6-6 variable scope

6-7 Wrapper classes for basic data types

6-8 Two's complement

6-9 integer type

6-10 floating point type

6-11 Character type

6-12 Escapes

6-13 The concept and usage of Boolean type

6-14 Convert small type to large type

6-15 Small type to large type conversion case

6-16 Convert large type to small type

6-17 Conversion between int type and char type

6-18 Get data through args array

6-19 Get data from console via Scanner

6-20 Case study of console input data

6-21 Variable self-add, self-subtract, self-multiply, and self-divide operations

6-22 Swap the values ​​of two variables

6-23 Java error types

6-24 DebugDebugging

6-25 Debug debugging case

7-1 Types of Java relational operations

7-2 Java examples explain the role of judgment statements and process control in relational operations

8-1 Types of Java logical operations

8-2 Java logic long circuit short circuit "AND" operation

8-3 Java logic long circuit short circuit "OR" operation

8-4 Java logical "not" operation

8-5 Java logical operation priority

8-6 Java logic operation case

9-1 Java If Statement Overview and Usage Format

9-2 Java If statement uses format 2-if else statement

9-3 Java If statement uses format 3-if nested statement

9-4 Java If Statement Algorithm Example 1 Keyboard Input Java Android SQL Three Subject Scores Find the Highest Score

9-5 Java If Statement Algorithm Example 2 Selection Method to Find the Highest Score in Three Subjects

10-1 Java Switch Statement Overview

10-2 Java Switch statement application case 1 Determine int type data

10-3 Java Switch statement application case 2 "penetration" phenomenon of switch statement

10-4 Java Switch statement application case 3 keyboard input string and judgment

10-5 Java Switch statement application case 4 displays the number of days in a specified month

11-1 Java loop overview and while loop

11-2 Use a while loop to print all uppercase English letters and their corresponding Unicode code solutions (1)

11-3 Use a while loop to print all uppercase English letters and the corresponding Unicode code solution (2)

11-4 Do While loop usage format and execution flow

11-5 Use Java do while loop to print all uppercase English letters and corresponding Unicode code solutions (1)

11-6 Use java do while loop to print all uppercase English letters and corresponding Unicode code solutions (2)

11-7 Format of Java For loop statement

12-1 Advantages of Java Array Definition Classification Declaration

12-2 Java array memory allocation

12-3 Java array static initialization

12-4 Use of Java arrays

12-5 Java two-dimensional array declaration memory allocation introduction and use

13-1 Detailed explanation of Java string String

13-2 Common methods of Java String strings

13-3 Java StringBuffer methods

13-4 Java StringBuider usage

14-1 Java exception handling - catching exceptions

14-2 Java exception handling-common exceptions

14-3 Java exception handling - throws keyword (1)

14-4 Java exception handling - throws keyword (2)

14-5 Java exception handling-custom exception

15-1 Java method creation and overloading

15-2 Creation of classes and the relationship between classes and objects

15-3 Java object-oriented programming

15-4 Java method recursive call

16-1 The use of Java encapsulation

16-2 Use of java anonymous objects

16-3 The use of java constructor objects

17-1 java reference passing

17-2 java this keyword

17-3 java static keyword

18-1 Java inheritance implementation

18-2 Limitations of Java Inheritance

18-3 Java subclass object instantiation process

18-4 Java method overriding and super keyword

18-5 The difference between Java rewriting and overloading

19-1 Use of Java final keyword

19-2 Java abstract class

19-3 Implementation of Java interface

20-1 Java object-oriented polymorphism

20-2 Application of object-oriented polymorphism in Java

20-3 Java object-oriented instanceof keyword

20-4 Java object-oriented abstract class application

20-5 The use of Java object-oriented interface

21-1 Java object-oriented generics - understanding generics

21-2 Java object-oriented generics - used in constructors

21-3 Java object-oriented generics - specifying multiple generics

21-4 Java object-oriented generics - wildcards

21-5 Java object-oriented generics-generic interface

21-6 Java object-oriented generics-generic methods

21-7 Java object-oriented generics - generic array

22-1 Java Collection - Collection

22-2 Java collection-List

22-3 Java collection-Set

22-4 Java Sets - Iterator

22-5 Java Collection-Map

23-1 Introduction to File class

23-2 File creation, deletion, renaming(1)

23-3 Creation, renaming, and deletion of folders (2)

23-4 Reading file attributes

23-5 File attribute settings

23-6 Traverse folders

23-7 Simple reading and writing of files

24-1 Introduction to Java IO

24-2 Characters, Bytes and Encodings

24-3 Reading and writing data using byte streams

24-4 Reading and writing data using character streams

24-5 Reading and writing data using a buffered character stream

24-6 FileReader and FileWriter

24-7 Use the Apache IO library to operate IO and files

25-1 Java multithreading - threads and processes

25-2 Java multithreading - implementation of threads

25-3 Java multithreading - thread status

25-4 Java multithreading - common methods of threading

25-5 Java multithreading - thread priority

25-6 Java multithreading - thread synchronization

25-7 Java multithreading - thread life cycle

26-1 What is Build Path

26-2 BuildPath for Java projects

26-3 Import and use of external libraries

26-4 Include other projects in the Build Path

26-5 Adding and modifying system libraries

27-1 Introduction to XML data format

27-2 Create XML data using Java

27-3 Using Dom4j to manipulate XML data

28-1 Introduction to JSON data format

28-2 Reading JSON data using Java

28-3 Create JSON data using Java

29-1 Use Http's Get method to read network data

29-2 Interactively communicate with the network using Http's Post method

29-3 Use HttpClient for Get mode communication

29-4 Use HttpClient for Post communication

30-1 Socket introduction

30-2 The establishment and use of ServerSocket

30-3 Use ServerSocket to establish a chat server-1

30-4 Use ServerSocket to build a chat server-2

30-5 Create a chat client using Java-1

30-6 Creating a chat client using Java-2

31-1 The purpose of Java interface design

31-2 Introduction to AWT

31-3 Introduction to Swing

31-4 Introduction to SWT

31-5 How to choose a GUI toolkit

32-1 Swing framework inheritance relationship

32-2 Swing's MVC structure

32-3 Swing’s event mechanism