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1.Windows Eclipse (in three steps): ①Download
the eclipse package; ②Unzip the eclipse package;
③Open
eclipse.exe, you must configure the JDK.
Download address: http://www.eclipse.org/downloads/eclipse-packages/
After downloading, unzip the compressed package directly into the folder, then open and run eclipse.exe (the JDK environment variables must be configured, at least PATH)
2. Centos Eclipse: ①Download
address: http://www.eclipse.org/downloads/eclipse-packages/;
②Download the Eclipse compressed package; ③Unzip
the Eclipse compressed package, and then open the eclipse program inside;
④Before opening, be sure to configure the environment variables of JDK, otherwise eclipse cannot be opened;
3. Java development tools in the industry:
①Jbuilder ②Jcreator
③NetBeans ④IDEA
⑤Eclipse supports JavaEE development; IBM
download address: http://www.eclipse. org ;
⑥MyEclipse: A plug-in based on the Eclipse development tool, supporting the development of JavaEE
4. Eclipse usage: ①Open
eclipse.exe; ②Remind
you to set or select a working folder, as shown in the figure:
Why work clips? Because the projects and operation files created in the future are in this folder, and the configured tool setting information is in this directory; as shown in the figure:
③ Don't ask questions next time, and directly enter the selected workspace, as shown in the figure:
④You can manually set a clip as a future work area, as shown in the figure:
⑤ Restart the development tool (restart).
5. You can adjust the skin window >> properties of the Eclipse software:
①Open the properties (all eclipse configuration information is in this menu), as shown in the figure:
②Set the skin effect of the window, as shown in the figure:
6. You can modify the code font:
① Modify the code font, as shown in the figure:
②The selected basic font, all code blocks will change, as shown in the figure:
7.Eclipse defaults to automatic compilation: ①Automatic
compilation option, as shown in the figure:
②As long as you save the code, it will be compiled automatically, as shown in the figure:
If you remove the tick, it becomes a manual compilation. After you write it yourself, you have to click build to compile it; you can use
Clear the compiled class files.
8. Default workspace settings, as shown in the figure:
9. Create a project in Eclipse
① Before we do development, the steps are as follows:
A. Create a file;
B. Then write the code;
C. Compile and run.
②The benefits of creating a project:
1) Independent environment configuration;
2) Code partition storage.
③Project creation: Java Project
1) Ordinary java project, as shown in the figure:
2) Plug-in project, as shown in the figure:
3) You can name the project by yourself, as shown in the figure:
4) The storage path of the project is in the workspace by default, if you want to put it in another path, as shown in the figure:
5) You can choose a path yourself, as shown in the figure:
This is the JDK selection, that is, your project operating environment;
6) If you want to configure a JDK yourself, follow the configuration below, as shown in the figure:
④You can configure JDK yourself
1) Click on the configuration:
Or click on properties:
2) Add JDK: Click Add
3) Select the path of JDK:
You can also rename it.
10. The java project structure created by Eclipse, as shown in the figure:
①Click on the project properties:
②Select the path of the project:
11. Create a Class file:
①Choose to create a Class file:
②Source code path (generally not selected by default):
③This is the package selection (no need to manage now, just clear it):
④Fill in the class name:
⑤ Choose whether to generate a main method for you:
⑥If there is no source package, create one yourself. A project can have many source packages:
12. Simple shortcut keys:
①alt+/ self-completion;
②ctrl+1 prompt modification;
③ctrl+/ comment.
13. How to run the class (you must have the correct main method to run it first):
①Click the run button to run:
②Right-click in the blank area of the class code:
③ Press F11 on the keyboard.
14. Window:
①In the project window, one by one is the project:
②Error summary window, all error messages are displayed here:
③Introduction to document annotations:
④Console window (all the data printed are displayed in the console, this control cannot display a lot of information, it will be washed out):
⑤Task:
⑥Structure introduction:
⑦Add window: If you accidentally close it, you can add it from the inside
. There are many windows to add:
There are more windows click on the options below:
⑧The window can be dragged and dropped freely: reset reset
15. Errors:
① The code syntax is wrong, and the correction cannot be prompted;
② The code syntax is wrong, and the prompt can help you correct it, but it is not necessarily the one you want;
③ Warning: This variable has been applied for and not used.
16. Import and export projects:
①The copying process is very simple, just copy directly to the project;
②Import the project:
③Select your project path:
④ Checking this option means to copy the project to your workspace:
