What is the alternative to distributing Java?
I don’t want to add JRE in my extracted files.
I don’t want to give away my .jar file to the user.
The end user just install and use application.
Which database to use so that the user don’t need to configure like SQL Server.
How to decrease execution time of my application? It takes more time to execute.
Edit
It is an application without a database.
There should be a setup file which installs in Program Files and shortcut on the desktop and some registry entry to start it with start up application.
You can deliver Java desktop apps as Applets and (more recently) Java Web Start apps. Using these technologies means that users don’t need to manually handle files.
As for RDBMS, there is a pure Java RDBMS going by the names JavaDB and Derby which might meet your needs.
There are many ways to improve the execution time of a program, it depends on what you’ve coded and what it does, for a start. I think you’ll need to ask a specific question on that to get a useful answer.