ImageJ Launcher
· The executable which runs ImageJ. Its purpose is also to make sure that updates downloaded by the ImageJ Updater will be put into place before starting the Java Virtual Machine. It was formerly known as the Fiji launcher.
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 ij-launcher-2.0.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
