Learning C# 7 By Developing Games with Unity 2017 - Third Edition

Declaring a variable and its type

Every variable that we want to use in a script must be declared in a statement. What does that mean? Well, before Unity can use a variable, we have to tell Unity about it first. Okay then, what are we supposed to tell Unity about the variable?

There are only three absolute requirements to declare a variable and they are as follows:

• We have to specify the type of data that a variable can store
• We have to provide a name for the variable
• We have to end the declaration statement with a semicolon

The following is the syntax we use to declare a variable:

typeOfData nameOfTheVariable; 

Let's use one of the LearningScript variables as an example; the following is how we declare a variable with the bare minimum ...