Libraries, projects, modules and packages in Intel

问题:

I'm a beginner programmer and I'm learning how to work with Intellij IDEA. A project in IntelliJ IDEA has some different structures like libraries, modules and packages.

Can someone explain what the difference is between those structures and when to use a particular structure? e.g. I can't choose my package name (of a class) arbitrarily when it's already part of a module. What is the connection between those? I'm primarily having difficulties understanding the difference between a package and a module. (characters)

回答1:

A project in intellij consists of modules. Modules can be java modules, or android modules or whatever. Modules contain your java code and all that stuff. A Module can reference a library which can be a project library or a global library. Global libraries have to be defined only once. Project library in every project you need them.

Packages are a java concept and are IDE independent.

Lets say I wanna do a little game. I would create a intellij Project called "mySuperGame". Then I would create two java modules from intellij, called "logic" and "ui". In the module settings of "ui" I would specify a project library to use opengl and a dep. to "logic". The package name of my logic classes would be "com.mysupergame.logic.XXX".

See http://confluence.jetbrains.com/display/IDEADEV/Structure+of+IntelliJ+IDEA+Project for more information.

回答2:

IntelliJ IDEA supports everything eclipse has. But vise versa might not be true. Please check this table for the differences. IntelliJ support intelligent perspective and has many windows.

Read the documentation from IntelliJ idea.

回答3:

Below comparison between Visual Studio (.NET) and IntelliJ (Java), which might be helpful for .NET developers migrating to Java: