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Fastest way(s) to move the cursor on a terminal command line?
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Since this hasn't been closed yet, here are a few more options.
Use Ctrl+x followed by Ctrl+e to open the current line in the editor specified by $FCEDIT or $EDITOR or emacs (tried in that order).
If you ran the command earlier, hit Ctrl+r for a reverse history search ...
Do you use NULL or 0 (zero) for pointers in C++?
In the early days of C++ when it was bolted on top of C, you could not use NULL as it was defined as (void*)0 . You could not assign NULL to any pointer other than void* , which made it kind of useless. Back in those days, it was accepted that you used 0 (zero) for null pointers.
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How to add dividers and spaces between items in RecyclerView?
This is an example of how it could have been done previously in the ListView class, using the divider and dividerHeight parameters:
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Unable to open project… cannot be opened because the project file cannot be parsed
I have been working for a while to create an iPhone app. Today when my battery was low, I was working and constantly saving my source files then the power went out...
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Why does the order of the loops affect performance when iterating over a 2D array?
...xcept that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens?
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Start ssh-agent on login
I have a site as a remote Git repo pulling from Bitbucket.com using an SSH alias. I can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
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Large Numbers in Java
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You can use the BigInteger class for integers and BigDecimal for numbers with decimal digits. Both classes are defined in java.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("274356...
Regex Email validation
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TLD's like .museum aren't matched this way, and there are a few other long TLD's. Also, you can validate email addresses using the MailAddress class as Microsoft explains here in a note:
Instead of using a regular expression to validate an email address,
you can use the System.N...
Putting git hooks into repository
...actice - to put .git/hooks into the projects repository (using symlinks, for example). If yes, what is the best way to deliver same hooks to different git users?
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How do I ignore files in a directory in Git?
What is the proper syntax for the .gitignore file to ignore files in a directory?
10 Answers
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