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How do I parse a string with a decimal point to a double?
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I like to use the XmlConvert class ... do you have any ideas whether this is better, worse, and/or different than using CultureInfo.InvariantCulture?
– ChrisW
Aug 30 '09 at 21:23
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Why start an ArrayList with an initial capacity?
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While pre-allocating known sizes is a good idea, not doing it is usually not terrible: you will need about log(n) re-allocations for a list with a final size of n, which is not a lot.
– Joachim Sauer
Mar 15 '13 at 11:48
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How to change line width in IntelliJ (from 120 character)
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IntelliJ IDEA 2018
File > Settings... > Editor > Code Style > Hard wrap at
IntelliJ IDEA 2016 & 2017
File > Settings... > Editor > Code Style > Right margin (columns):
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Adding local .aar files to Gradle build using “flatDirs” is not working
... that was added after you imported the AAR file (at the same level as app/.idea under the top most level folder). Or to put it another way...
MyApplication
.idea
app
build.gradle (here's where to add compile project(':ProjectName') to dependency section)
ProjectName (added automatically af...
Can't ignore UserInterfaceState.xcuserstate
...erfaceState.xcuserstate to .gitignore , but Git it won't ignore it. Any ideas why this is so?
12 Answers
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Update built-in vim on Mac OS X
...t to install over your existing Vim, for better or worse :-) This is a bad idea and it is not the "clean" way to do it. Why? Well, OS X expects that nothing will ever change in /usr/bin unbeknownst to it, so any time you overwrite stuff in there you risk breaking some intricate interdependency. And,...
Is it good practice to make the constructor throw an exception? [duplicate]
...mplement argument checking that is specified in your javadoc is not a good idea ... because it means your method will only strictly implement the specification when assertion checking is enabled.
The second problem with assert is that if an assertion fails, then AssertionError will be thrown, and r...
Test if a command outputs an empty string
...er of maximally 1 character using head -c1(thanks to netj for posting this idea in the comments below)
compare that number with zero
So for example, instead of:
if [[ $(ls -A) ]]
I would use:
if [[ $(ls -A | wc -c) -ne 0 ]]
# or:
if [[ $(ls -A | head -c1 | wc -c) -ne 0 ]]
Instead of:
if [ ...
Learn C first before learning Objective-C [closed]
... you'll receive a very powerful team.
If you only learn Obj-C and have no idea of C or only know the very basics of it and never tried how elegantly it can solve some common problems, you actually learned only half of Obj-C. C is a fundamental part of Obj-C. The ability to use C at any time and eve...
Java compile speed vs Scala compile speed
...st has settled on 2.8. This page documents some of the ongoing efforts and ideas to improve the performance of the Scala compiler.
Martin Odersky provides much more detail in his answer.
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