Hey i am making a Yahtze game and need some help.

I want to write the code to how the dices will work so.

What i've been trying to do is:

I made six variables since there are 6 sides on the Dice.

Then i am going to make a function which rolls randomly one of these variables. So i made this one:

public Int32 RandomRollDice
{
//random generator code here
return "value will be here";
}

But i realize i have no idea how i do this, and i have no idea how to define the return value. I've tried to search internett bu,t my hits are mainly on classes and such things i do not understand. Are there like any simple functions for a random roll i could understand as a beginner?

So if anyone could give me a hint, thanks.