View Java Class Source Code in JAR file
- Download JD-GUI to open JAR file and explore Java source code file (.class .java)
- Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window jse-2.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
calculator
├─ calculator.CalculatorService.class - [JAR]
launcher
├─ launcher.LaunchCalculatorContribution.class - [JAR]