The Update JAR file dialog has the following components:
Where is the updated JAR file located? In the text box, type the path of the JAR file that you want to update. If you don't know the path, you can click the Browse button to search for the file. For example, C:\my JAR files\Silver.jar.
Install all classes Select this option if you want to install all the classes in this JAR file.
Install selected classes Select this option to identify specific classes to install from the selected JAR file. Separate each class with a comma. You can click Select to view a list of classes in the selected JAR file.
Select All Installs all the classes in the JAR file list.
Clear All Clears all the classes in the JAR file list so they are not installed.