EZ Programing Demos

Slow motion, step by step, animated demonstrations of basic computer programing techniques

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About getting....

In this section the person running the program places a value into a variable while the program is running. That is, the program pauses and asks the user to enter a number and then continues running after the number has been entered. The entered number ends up being held as the value of a variable.

Here we are talking about a common situation: A program is running, and to complete its job it must get some information from the person running the program. This person is usually called the 'user'.

This is a type of 'input'. A form may be present that the user needs to fill out, or a dialog of some type might pop up asking the user for certain information, perhaps a name or number. The program usually waits, or pauses, until the user types in the reply to the request. After getting what it wants, the program proceeds to run, now using the newly entered information.

The important idea to get here is that this section is about getting information into a program while it is running, rather than having all the values hardcoded into the program before it is run.


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EZ Math Movie is a site that can help you experiment with and understand many topics in mathematics. Its main feature is an interactive animated (x, y) graph that you control with an actual programing language. There are many examples and tutorials, and EZ Math Movie is crossed referenced with both EZ Programing Demos and Zona Land Education.


Zona Land Education is a site with explanations and interactive diagrams covering many topics in physics and mathematics. Zona Land Education is cross referenced with EZ Math Movie, and it contains several animations that use EZ Math Movie's programing language.