I am attempting to learn three different computer languages. Python, Java, and C++.  I study Udemy courses to help myself understand concepts for each of these languages. I know that placing the main function at the bottom of a program is better for C++ languages. Is this true for every language? Is having the main function at the bottom of the program a top down or bottom up style? I am struggling with understanding method overloading. How is this top down, or vice versa, style of programming better for method overloading? Method overloading is still a bit of a puzzle to me. In a python course on Udemy I was told that the compiler starts at the very end of the program feeding the data from the bottom end first before it translates. This is why bottom up is better for overloading, right?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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I am attempting to learn three different computer languages. Python, Java, and C++. 

I study Udemy courses to help myself understand concepts for each of these languages. I know that placing the main function at the bottom of a program is better for C++ languages. Is this true for every language? Is having the main function at the bottom of the program a top down or bottom up style?

I am struggling with understanding method overloading. How is this top down, or vice versa, style of programming better for method overloading? Method overloading is still a bit of a puzzle to me.

In a python course on Udemy I was told that the compiler starts at the very end of the program feeding the data from the bottom end first before it translates. This is why bottom up is better for overloading, right?

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