Click here to navigate the course.

Drag the edges to resize the window.

In Projects, you can keep track of your progress as you go throught the tasks. Check each item as you complete it!

Code Editor

What You'll Be Building

Hiding information is a major part of programming: protecting passwords, establishing secure connections, and securing programs against tampering all rely on controlling access to information.

While we won't be able to really dig into information hiding until after we cover hashes in a later course, we can write a simple program to change a user's input with the tools we have now: arrays and iterators.


Hit Run to test out our redactor program and to learn how to build your own.

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