0
votes
3answers
323 views

Can not open “.jar” file in windows 8

I downloadd jar application named Need for speed most wanted. Now when I double clicked on the jar file icon, it does not executed. I checked I have jre installed in my windows 8 (64 bit) machine in ...
0
votes
1answer
390 views

Cannot delete jar from lib/ext folder

I've added a jar in the extension folder of my JRE (lib/ext) in order to provide an extension code to my applications. Now I want to delete this jar, but I cannot. The error message says: Cannot ...
1
vote
1answer
3k views

I can not start a .jar-file by double-clicking, only from command-line in Windows

I have a Java application in a .jar-file. I can start it by typing java -jar myapp.jar and the application starts, but if I double-click on the .jar-file, nothing happens. What can be wrong? How can I ...