Open a file by double click with a program written in java

Question

I want to know if it\'s possible to open a file in my program that is written in java just by doing a double click on the file?

For example: On my desktop is a file

Answer 1

It is the operating system that decides which applications are associated with a given extension. You may configure your OS to open all .dat files with you program if that works for you. Alternatively create a shortcut or a launcher telling what to use.