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NSUserDefaults removeObjectForKey vs. setObject:nil
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edited Jan 23 '17 at 22:08
answered Jan 19 '17 at 15:38
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How to Create a circular progressbar in Android which rotates on it?
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12 Answers
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Regular expression to match a dot
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152
A . in regex is a metacharacter, it is used to match any character. To match a literal dot, you ...
Mockito: InvalidUseOfMatchersException
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287
The error message outlines the solution. The line
doNothing().when(cmd).dnsCheck(HOST, any(Ine...
Is a Java string really immutable?
... the lookup table used in Integer autoboxing etc.
Now, the reason s1 and s2 change value, is that they both refer to the same interned string. The compiler does this (as mentioned by other answers).
The reason s3 does not was actually a bit surprising to me, as I thought it would share the value ...
Are static class instances unique to a request or a server in ASP.NET?
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edited Jan 25 '10 at 19:18
Dan Herbert
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Why is the use of alloca() not considered good practice?
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22 Answers
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How do you use an identity file with rsync?
...eval $(ssh-agent) # Create agent and environment variables
ssh-add ~/.ssh/1234-identity
ssh-agent is a user daemon which holds unencrypted ssh keys in memory. ssh finds it based on environment variables which ssh-agent outputs when run. Using eval to evaluate this output creates the environment ...
How to base64 encode image in linux bash / shell
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You need to use cat to get the contents of the file named 'DSC_0251.JPG', rather than the filename itself.
test="$(cat DSC_0251.JPG | base64)"
However, base64 can read from the file itself:
test=$( base64 DSC_0251.JPG )
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How to Right-align flex item?
...ound: #efefef; border: 1px solid #999; }
.b { text-align: center; }
<h2>With title</h2>
<div class="main">
<div class="a"><a href="#">Home</a></div>
<div class="b"><a href="#">Some title centered</a></div>
<div cl...