C# 9 added the record type, which is a new reference type that uses value-based equality. C# 10 introduced the record struct syntax to define a value type with similar properties to record (https:/...

I am getting started with Object-Oriented Programming (OOP) and would like to know: what is the meaning of serialization in OOP parlance?

I'd like to build an OO hierarchy of errors and warnings returned to the client during a, let's say, pricing operation: interface PricingMessage {} interface PricingWarning extends PricingMessage...

I´ve found a comment of user R..: C and C++ are not the same language. In particular, C const has nothing to do with C++ const. I know, that one difference between the const qualifier in C and...

How is a variable stored in a computer memory ? For example: when we specify int x = 15; Typically the computer in its ram allocates a 4 bytes chunk of memory, storing the value 15 in the form o...

I'm reading Programming Scala. At the beginning of chapter 4, the author comments that Java supports static methods, which are "not-so-pure OO concepts." Why is this so?

The below code summarises all the numbers in the list held in all_numbers. This makes sense as all the numbers to be summarised are held in the list. def firstn(n): '''Returns list number range f...

I am a beginner in C . I have recently learned about 2's Complement and other ways to represent negative number and why 2's complement was the most appropriate one. What i want to ask is for examp...

In introductory books on C it is often claimed that pointers more or less are arrays. Isn't this a vast simplification, at best? There is an array type in C and it can behave completely diff...

I'm an old-time programmer from the 80s proficient with C and Pascal. I'm pretty new to Java and its concept. In trying to learn the new ways of Java using OOP techniques I'm rather confused about ...

I am studying a sample Go application that stores data in mongodb. The code at this line (https://github.com/zeebo/gostbook/blob/master/context.go#L36) seems to access a user ID stored in a g...

If you have the object Dictionary<k, v> myDictionary, then myDictionary.Values will be of type Dictionary<k, v>.ValueCollection and myDictionary.Keys will be of type Dictionary<k, v&...

Ok, so I've been doing Delphi Programming for 3-4 years now and consider myself an intermediate-level application designer with a sound understanding of concepts. But how do I get better? I've just...

Is there a way, in R, to pop up an error message if a function uses a variable not declared in the body of the function: i.e, i want someone to flag this type of functions aha<-function(p){ re...