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  1. language agnostic - What is a lambda (function)? - Stack Overflow

    Aug 19, 2008 · For a person without a comp-sci background, what is a lambda in the world of Computer Science?

  2. java - What exactly does a jar file contain? - Stack Overflow

    However, I got curious to what each class contained and when I try to open one of the classes in the jar file, it tells me that I need a source file. A jar file is basically a zip file containing .class files and …

  3. multithreading - What is a "thread" (really)? - Stack Overflow

    Jul 8, 2025 · I have been trying to find a good definition, and get an understanding, of what a thread really is. It seems that I must be missing something obvious, but every time I read about what a …

  4. What is the difference between a schema and a table and a database ...

    Apr 25, 2017 · A relation schema is the logical definition of a table - it defines what the name of the table is, and what the name and type of each column is. It's like a plan or a blueprint. A database schema …

  5. security - What is a keytab exactly? - Stack Overflow

    May 9, 2017 · To answer your two questions: every user and service does not need a keytab file keytabs use symmetric key cryptography. I'm going to explain a bit more based on my understanding …

  6. multithreading - What is a deadlock? - Stack Overflow

    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 you …

  7. c - What is bit masking? - Stack Overflow

    May 8, 2012 · I am fairly new to C programming, and I encountered bit masking. What is the general concept and function of bit masking? Examples are much appreciated.

  8. git - What is a stash? - Stack Overflow

    First of all: let us understand why do we need to use stash? In order to understand what stash is, we first need to understand the 3-states. Git has a built-in model named 3-states which is the internal git …

  9. python - What is a mixin and why is it useful? - Stack Overflow

    In Programming Python, Mark Lutz mentions the term mixin. I am from a C/C++/C# background and I have not heard the term before. What is a mixin? Reading between the lines of this example (which I …

  10. What is a non-capturing group in regular expressions?

    Aug 18, 2010 · How are non-capturing groups, i.e., (?:), used in regular expressions and what are they good for?