Create Jar | Download

Click the + sign and select > From modules with dependencies . Select your main class and click OK . Build the JAR by selecting Build > Build Artifacts > Build . Eclipse : Right-click your project and select Export . Choose Java > JAR file (or Runnable JAR file ). Select the destination path and click Finish .

: Add -v to see the list of files being added in real-time. 2. Exporting from IDEs

If you are trying to run a JAR file rather than create one, you may need additional utilities: Download create jar

: Required to open and execute any JAR file.

: For complex projects with many dependencies, tools like Apache Maven or Gradle are recommended to automate the JAR creation process via mvn package or gradle build commands. How to Create a Runnable Jar in Java IntelliJ Click the + sign and select > From modules with dependencies

Most developers prefer using IDEs because they automatically handle manifest files and dependency packaging. : Go to File > Project Structure > Artifacts .

: A free utility often used when JAR files are incorrectly associated with other programs (like WinRAR or 7-Zip). Running Jarfix once restores the correct Java association. Eclipse : Right-click your project and select Export

: To make the JAR runnable by double-clicking, you must define a "Main-Class" in a manifest file or use the -e flag. Example: jar cvfe MyApp.jar com.example.MainClass *.class .