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Initial size for the ArrayList
...lements in the list;
the capacity is how many elements the list can potentially accommodate without reallocating its internal structures.
When you call new ArrayList<Integer>(10), you are setting the list's initial capacity, not its size. In other words, when constructed in this manner, the ...
Remove portion of a string after a certain character
...ich I think addresses everything below and also explains ways to deal with all kinds of things like case insensitive, multiple occurrences, and regular expressions. If anyone wants to do anything more flexible or doesn't have control over the input coming in it's probably worth checking out.
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SSH configuration: override the default username [closed]
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Create a file called config inside ~/.ssh. Inside the file you can add:
Host *
User buck
Or add
Host example
HostName example.net
User buck
The second example will set a username and is hostname specific, while the first e...
How do I preview emails in Rails?
...iables the template expects.
This could be done with fixtures, but I typically prefer to just grab some pseudo-random real data. Remember - this is NOT a unit test - this is purely a development aid. It doesn't need to produce the same result every single time - in fact - it's probably better if ...
How can I install a local gem?
If I download a .gem file to a folder in my computer, can I install it later using gem install ?
9 Answers
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Why use finally in C#?
Whatever is inside finally blocks is executed (almost) always, so what's the difference between enclosing code into it or leaving it unclosed?
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Android Hello-World compile error: Intellij cannot find aapt
... Ubuntu linux system which cannot execute the 32-bit aapt executable.
Installing 32-bit compatibility libraries solved this issue in my case: sudo apt-get install ia32-libs
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How to draw circle in html page?
...have a higher chance of it looking the same on different systems since not all computers/browsers have the same fonts installed.
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How can I install an older version of a package via NuGet?
I want to install an older version of a package ( Newtonsoft.Json ). But NuGet rolls back:
5 Answers
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Java using enum with switch statement
...ting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int value you receive (this is the pre-Java 5 approach)
Switch on either a specified id v...