How to create jar file from command line?

Running of JAR file in Windows 7?

• I have a "helloworld.jar" file. For running a JAR file I am using a command-line window and executing the following command: java -jar helloworld.jar By using this command I can execute the JAR file but instead of doing it in a command-line window, I want to execute the JAR file by double click. For this do I need to install any software? Can any one provide me help on this? Thanks in advance!!

• Answer:

  The Oracle Java tutorials has some information on how to do this. It's called the 'Java Web Start Application'. Here's a copy & paste of what it does: *** •Java Web Start applications - Java Web Start applications are launched via a browser the first time. They may subsequently be launched from a desktop shortcut. Once a Java Web Start application is downloaded and its security certificate has been accepted by the user, it behaves almost like a standalone application. *** I haven't taken the time to learn how to do it... Here's the link: http://docs.oracle.com/javase/tutorial/deployment/index.html