Java Programming: Lesson 20 - Static Methods смотреть онлайн

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In the previous video (https://youtu.be/r-Ow_ruEx10), we learned how to use the Math class in Java to perform more interesting numeric operations. Here, we learn how to create our own functions, which allow us to make our code more modular, more interesting, and less error-prone.

Up to this point, we've written all code in the main method. We can create individual static methods that contain modular segments of code. We can learn about techniques for calling functions by different names, returning different data types, accepting different sets of parameters, and doing different things within their bodies.

public static int f( double x , boolean z )
{
if( z )
{
return 5;
}
return (int)(x);
}

A return statement ends a method. This method returns 5 if the boolean passed into the second argument is true, and the integer form of the floating-point number passed in if the boolean passed into the second argument is false.

0:12 NEW: Intro to Static Methods
2:18 NEW: Creating Static Methods
5:39 NEW: Calling Static Methods
6:46 NEW: Ordering of Static Methods
7:54 NEW: Static Methods with Multiple Inputs
9:39 NEW: Static Methods that Accept Varied Data Types
11:44 NEW: Running a Static Method in BlueJ
13:34 NEW: Static Methods that Return Varied Data Types
16:20 Synthesis of Static Methods

An equivalent Python lesson regarding methods (called functions in Python) is here: https://youtu.be/auL1VQfLba4

Much more information and examples regarding functions can be found in the next lesson, available here: https://youtu.be/CmR1ngcXjkM

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