Linked Questions

I'm a newbie coder. I find it troublesome to declare a variable in 1 function and not be able to access it in other functions. I have to make many of my variables global just to get my code to work. ...

I'm relatively new to programming (July 2015), and I've always wondered why it's good programming practice to hide variables as much as possible. I've run into this question mainly recently when I ...

I am newly learning C Programming. When we have a C Program with lot of functions, parameter passing, calling and all - It becomes a great problem as to which variable must be declared where. My ...

Im a beginner using visual studio 2013, and I know what they are, but I'm puzzled, why would one use a local variable? I would always just use a global variable.

Having a larger WinForms application with several classes I currently pass references to several "central" objects around to function calls. This leads to more method parameters. Example: public ...

Hey so i was wondering which is the more efficient way, or better practice to do in this situation. 1, def function(): global number number += 2 Or 2, def function(number): return ...

I am working on one of my first projects in C (microcontroller code) which is split up into multiple C files. I noticed some inconsistency in my coding where I had some variables declared as extern ...

Most people here and on StackOverflow agree that Singletons are evil. The main explanation I've come across against the use of Singletons, is they fact that they provide a global point of access to ...

I just ran across this old question asking what's so evil about global state, and the top-voted, accepted answer asserts that you can't trust any code that works with global variables, because some ...

There are plenty of reasons why globals are evil in OOP. If the number or size of the objects needing sharing is too large to be efficiently passed around in function parameters, usually everyone ...

I found this quote in "The Joy of Clojure" on p. 32, but someone said the same thing to me over dinner last week and I've heard it other places as well: [A] downside to object-oriented programming ...

This question is about whether to make a nested class in Java to be a static nested class or an inner nested class. I searched around here and on Stack Overflow, but couldn't really find any questions ...

I am studying OOP in C++ and, even though I am aware of the definitions of these 3 concepts, I cannot really realize when or how to use it. Let's use this class for the example: class Person{ ...

Although in the code below a simple single item purchase in an e-commerce site is used, my general question is about updating all data members to keep an object's data in valid state at all times. I ...

We have a huge C, and C++ code base. There is a plan to add a new feature into the existing system, but, this should happen only after 3 to 4 months. So, we are looking for best possible options. ...