May 5, 2009 · Developers are often confused by what a callback is because of the name of the damned thing. A callback function is a function which is: accessible by another function, and is …

Can anyone, please, explain to me in very simple terms what a "method" is in Python? The thing is in many Python tutorials for beginners this word is used in such way as if the …

A JavaBean is just a standard. It is a regular Java class, except it follows certain conventions: All properties are private (use getters/setters) A public no-argument constructor Implements …

What is a StackOverflowError, what causes it, and how should I deal with them?

Aug 29, 2008 · When writing multi-threaded applications, one of the most common problems experienced are deadlocks. My questions to the community are: What is a deadlock? How do …

What is a "stored procedure" and how do they work? What is the make-up of a stored procedure (things each must have to be a stored procedure)?

May 9, 2012 · Yeah, the noob question of the century... But in all seriousness, I actually have no idea what a float value actually is... And more importantly, the difference between a float and …

Aug 29, 2008 · A semaphore is a programming concept that is frequently used to solve multi-threading problems. My question to the community: What is a semaphore and how do you use it?

Aug 19, 2008 · I don't think it's necessarily accurate to say lambda functions are the same as anonymous functions. For some languages like JavaScript a lambda expression is a specific …

Apr 23, 2018 · It is a UID which can be used by the website operator (and Cloudflare support) to potentially debug issues. The ray id is actually returned in the headers of most requests …