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Learn about local variables, which “belong” to a function, and global variables, which are available to all functions.

Why it is confusing to use the same variable name in the sending function and the receiving function. View an annotated PDF ...

Using function prototypes allows you to call functions before you have defined their function body.

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When data are organized in a matrix or data frame, the apply() function can be used to calculate summaries (or apply a more ...

You use an if statement to make decisions about whether to take an action or not. You use an if/else statement to decide whether ...

Various forms of the print() function, including formatting output. Note: at 8:10 I say“I'll pass that on to the format function” -- the ...

Keep It Simple Sea Cucumber I'm talking about foundations here: pattern matching as *The Feature* of Scala, case classes, the ...

Advanced Features of Functions Part 1 : Introduction and passing one function to another.

Writing an algorithm that finds a value in an array by looking at each item in term from beginning to end.

When an array has its elements in sorted order, a binary search is a very efficient way to find elements in the array.

Also: what is variable scope? Note: at 1:00, the narration should be “Is **a** in the current scope? No, it isn't.”

Learn when to use -- and not to use -- exceptions.

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Video lecture by Jill Jones Center for Computer Studies Magnet Program Carl Hayden High School.

Learn how to declare, initialize, and iterate through arrays.

Video # 3 Chapter One - Why We Program? Demonstration: Doing the "Hello World" Assignment. Programming for Everybody ...

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Rediscover and explore the Verhoeff-Gumm algorithm, a check digit formula which is more resilient to common errors than the ...

Nesting if/else statements to test multiple conditions -- and a convenient shortcut for writing such statements.

When should you use braces around the body of an if/else? (Spoiler alert: always.)

Learn about the +=, *=, (etc), ++ and -- operators.

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Learn how to determine the runtime class of an object so you can cast it to the orrect data type.

In this course, our style guidelines tell you to *always* use braces with if statements. This video explains the problems you could ...