I have seen this mentioned a few times and I am not clear on what it means. When and why would you do this? I know what interfaces do, but the fact I am not clear on this makes me think I am missing out on using them correctly. Is it just so if you … Read more
Locked. This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new answers or interactions. What is, in your opinion, the most surprising, weird, strange or really “WTF” language feature you have encountered? Please only one feature per answer. 320 s 320 In C, … Read more
What is an idempotent operation? 15 s 15 In computing, an idempotent operation is one that has no additional effect if it is called more than once with the same input parameters. For example, removing an item from a set can be considered an idempotent operation on the set. In mathematics, an idempotent operation is … Read more
What is the difference between concurrency and parallelism? Examples are appreciated. 3 38
I’ve been attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) … What I’m wondering is, at a core level, what does bit-shifting (<<, >>, >>>) do, what problems can it help solve, and what gotchas lurk around the bend? In … Read more
Why prefer composition over inheritance? What trade-offs are there for each approach? When should you choose inheritance over composition? 3 33
