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Does Java 8 provide a good way to repeat a value or function?
In many other languages, eg. Haskell, it is easy to repeat a value or function multiple times, eg. to get a list of 8 copies of the value 1:
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What is the difference between ? and Object in Java generics?
I'm using Eclipse to help me clean up some code to use Java generics properly. Most of the time it's doing an excellent job of inferring types, but there are some cases where the inferred type has to be as generic as possible: Object. But Eclipse seems to be giving me an option to choose between a...
How to set the thumbnail image on HTML5 video?
Is there a way to set thumbnail image on HTML5 video?
I want to see some pictures before play.
My code looks like this:
7 A...
Is there an upside down caret character?
I have to maintain a large number of classic ASP pages, many of which have tabular data with no sort capabilities at all. Whatever order the original developer used in the database query is what you're stuck with.
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What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
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Since I'd already created these images, I thought it might be worth using them in another answer, although the description of the difference between .. (dot-dot) and ... (dot-dot-dot) is essentially the same as in manojlds's answer.
The command git diff typically¹ only...
Why is #!/usr/bin/env bash superior to #!/bin/bash?
I've seen in a number of places, including recommendations on this site ( What is the preferred Bash shebang? ), to use #!/usr/bin/env bash in preference to #!/bin/bash . I've even seen one enterprising individual suggest using #!/bin/bash was wrong and bash functionality would be lost by doing...
How do I list all cron jobs for all users?
...nd or an existing script that will let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /etc/crontab .
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using extern template (C++11)
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You should only use extern template to force the compiler to not instantiate a template when you know that it will be instantiated somewhere else. It is used to reduce compile time and object file size.
For example:
// heade...
How do I create a parameterized SQL query? Why Should I?
I've heard that "everyone" is using parameterized SQL queries to protect against SQL injection attacks without having to vailidate every piece of user input.
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Why do we need the “event” keyword while defining events?
I don't understand why do we need the "event" keyword while defining events, when we can do the same thing without using "event" keyword, just by using the delegates.
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