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 requirements:

int number1;

This is what we have:

• Requirement #1 is the type of data that number1 can store, which in this case is an int, meaning an integer

• Requirement #2 is a name, which is number1

• Requirement #3 is the semicolon at the end

The second requirement...