Correct way to add external jars lib jar to an IntelliJ IDEA project

Question

When creating a new Java project in IntelliJ IDEA  the following directories and files are created     projectname iml   projectname ipr   projectname iws   src    I want to configure IntelliJ IDEA to include my dependency JARs in   lib   jar to the project  What is the correct way to achieve this in IntelliJ IDEA

User · Answer

Some great help found here  However  I still could not make it to work despite loading JAR properly  I found out later that I accidentally created module in the file structure instead of regular folder and this very module was pre-selected in the project setting   Here is the footprint      File -  Project Structure -  Modules -   select proper module if you have more  -  Dependencies -    -  JAR or Libraries

User · Answer

Libraries cannot be directly used in any program if not properly added to the project gradle files   This can easily be done in smart IDEs like inteli J   1  First as a convention add a folder names  libs  under your project src file   this can easily be done using the IDE itself   2  then copy or add your library file  eg   jar file  to the folder named  libs   3  now you can see the library file inside the libs folder  Now right click on the file and select  add as library   And this will fix all the relevant files in your program and library will be directly available for your use   Please note   Whenever you are adding libraries to a project  make sure that the project supports the library

User · Answer

Steps for adding external jars in IntelliJ IDEA   Click File from the toolbar Select Project Structure option  CTRL   SHIFT   ALT   S on Windows Linux        on Mac OS X  Select Modules at the left panel Select Dependencies tab Select   icon Select 1 JARs or directories option

User · Answer

Just copy-paste the  jar under the  libs  folder  or whole  libs  folder   right click on it and select  Add as library  option from the list  It will do the rest

User · Answer

You add them as libraries to your module     I usually have a  lib directory in my source    I put all the JARs I need there  add  lib as a library  and make it part of my module dependencies   2018 update  I m using IntelliJ 2017 2018 now     I m fully committed to Maven and Nexus for dependency management   This is the way the world has gone   Every open source Java project that I know of uses Maven or Gradle   You should  too

User · Answer

IntelliJ IDEA 15  amp  2016   File   Project Structure        or press Ctrl   Alt   Shift   S Project Settings   Modules   Dependencies       sign   JARs or directories      Select the jar file and click on OK  then click on another OK button to confirm     You can view the jar file in the  External Libraries  folder

User · Answer

Open File Menu  gt  Project Structure  gt  Module  gt  Select Dependency  gt    Select one from given option  Jar Library Module dependency   Apply   Ok Import into java class

User · Answer

While I agree with the previous answers  it s important to note how to access the code of those external libraries    For example to access a class in the external library  you will want to use the import keyword followed by the external library s name  continued with dot notation until the desired class is reached    Look at the image below to see how I import CodeGenerationException class from the quickfixj library

User · Answer

If you are building your project with gradle  you just need to add one line to the dependencies in the build gradle   buildscript                  dependencies       implementation fileTree dir   libs   include      jar        and then add the folder to your root project or module     Then you drop your jars in there and you are good to go  -

User · Answer

I use this method and it works well   1- Copy And paste the  jar files under the libs folder   2- Add compile fileTree dir   libs   include     jar   to dependencies in build gradle then all the jars in the libs folder will be included    3- Right click on libs folder and select  Add as library  option from the list

[java] Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project

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