A simple collection subsets generator made in Java. Includes a proper command line interface for end user.
If you want to only use the application, without having to compile it, download the provided jar file in the dist folder. Run it with the command below:
java -jar combinations.jar
If you want to print the output to a file, just use your system redirector.
For example, printing a lottery draw to a txt file (“> m.txt”):
java -jar combinations.jar -g -i -r -d "," -k 6 10 12 23 30 39 45 46 > m.txt
This is a quick program for personal purposes and is not meant to be used as a reference for code quality, abstraction and so forth. I literally made it in less than an hour, and I was learning to program in Java at that time, so there is also some experimentation in code quality and readability to see what suited my tastes.