C# or Java for this program?

[Jason Mathers]

I am going to be building my first program ever. It's going to be for estimating construction projects. Essentially it's just going to be a program for windows where you import and scale construction plans, then do a "takeoff". I.e. you have a wall, you will input an assembly for that wall and then trace the length of wherever that certain detail appears. It would then give a material count, as well as labor required.

UI is going to be important as well. Since it's going to be used by construction workers, I would like it to look nice (not sure if one language can better facilitate that or not).

Any suggestions on the language would be greatly appreciated.

Thanks,

[Claude Moore]

First of all, welcome to the ranch!
If you already know that your program will run on Windows, in my humble opinion your choice should be C#,  assuming that you are equally proficient in both languages.Why C# ? It's undeniable that .net languages offer better integration with Windows OS. Given the nature of your project - a CAM - I suppose you will need soon or later to work with devices like plotters, printers, and drawing pads, and on my experience using .NET for such tasks it's just easier than with Java

[Daniel Demesmaecker]

I dont agree with CM. If you run your code on windows or not shouldn't mather, write once/run everywhere. I never had any problems trying to use printers or whatever in java and javaFX is way easier to use to create a graphical interface, but thats my own preference ofcourse