My question is if it's possible to make a variable dependant on other variables. I want write a program where I am going to frequently use the answer of variable "a" times varbiable "b" (both int's). This means often typing "a*b". My question is if it is possible to make a variable "c" that is always equal to "a*b". Whenever "a" or "b" is changed, "c" would also change. This would be great for reducing potential for error and make for neater code. But is it possible?