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 invoked after …

Jan 18, 2021 · I am writing an application (Django, it so happens) and I just want an idea of what actually a "CSRF token" is and how it protects the data. Is the post data not safe if you do …

Jun 13, 2009 · I am going to provide a more commonplace description. Say my wife has a sister named Sue, and so do I. How can I tell them apart in a conversation? By using their last names ("Sue …

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

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 …

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 …

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 …

Sep 23, 2019 · A MIME type is a label used to identify a type of data. It is used so software can know how to handle the data. It serves the same purpose on the Internet that file extensions do on …

A view represents a virtual table. You can join multiple tables in a view and use the view to present the data as if the data were coming from a single table. A stored procedure uses parameters to do a …

Jul 16, 2021 · Check "The folder metaphor" section at Wikipedia. It states: There is a difference between a directory, which is a file system concept, and the graphical user interface metaphor that is used to …