2. Variables and Data Types

2.1 What are Variables?

Variables are like empty boxes where you can keep information. Each box has a name so you can find it later. Each box also has a 'type' that tells the computer what kind of thing is inside.

Number age = 15.
Sentence name = "Alex".
Displaynl(name).
Displaynl(age).

2.2 The Four Box Types

We have four kinds of boxes you can use: Number (for all numbers), Letter (for one single character), Sentence (for words and text), and Logic (for True or False values).

Number myAge = 12.
Number piValue = 3.14.
Letter myGrade = 'A'.
Sentence myPet = "Dog".
Logic likePizza = True.
// You can create a box without filling it right away.
Number emptyBox.