This is how variables work in programming. A variable is a label ... depending on what value that variable contains. For example, we might create a variable for a computer game called “health.” ...

Although we're starting off our first programming ... A string variable is a string of alphanumeric characters and allowed symbols that are contained within quotation marks. For example, "Hello ...

For example, a variable can be used in the program that controls an automatic car park barrier. It can keep track of the number of cars going in and out and decide whether to let more cars in.