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How to pass objects to a function and get objects returned back from functions.

Using recursive function calls in python. View an annotated PDF transcription of the video: ...

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Guidelines for giving your variables meaningful names.

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You can have multiple methods with the same name as long as the number and/or types of the parameters is different.

When you pass an object to a method, you are passing a copy of the *reference* to that object. That lets you update an object's ...

You can do multiple initializations and iteration actions within a for loop. Here's how it works.

Primitives (int, double, etc.) have values stored in their memory locations. Objects have references to the memory where the data ...

Some decision structures require you to put if statements inside if statements. That's called a “nested if” statement.

View all the objects in the workspace using ls(), remove objects using rm(), cast a variable as a different type using an as.[type]() ...

The for loop is a shorthand for a while loop; it specifies the initial loop variable, the continuation test, and the action after each ...

In this video, I explain how messages are transmitted over electromagnetic waves by altering their properties—a process known ...

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Find out the limits of using casting when working with polymorphism.

In a preceding video, we had duplicated code to read the user input outside the loop and inside the loop. To avoid duplicated ...

How to get something better than the name of a class and its memory reference when you print an object reference.