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How to get a variable value if variable name is stored as string?
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You can use ${!a}:
var1="this is the real value"
a="var1"
echo "${!a}" # outputs 'this is the real value'
This is an example of indirect parameter expansion:
The basic form of parameter expansion is ${parameter}. The value of
parameter is subs...
Java 8 stream's .min() and .max(): why does this compile?
Note: this question originates from a dead link which was a previous SO question, but here goes...
5 Answers
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Asynchronous vs Multithreading - Is there a difference?
Does an asynchronous call always create a new thread? What is the difference between the two?
10 Answers
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Twitter image encoding challenge [closed]
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Alright, here's mine: nanocrunch.cpp and the CMakeLists.txt file to build it using CMake. It relies on the Magick++ ImageMagick API for most of its image handling. It also requires the GMP library for bignum arithmetic for its string encoding.
I based my solution off of fr...
Handling InterruptedException in Java
What is the difference between the following ways of handling InterruptedException ? What is the best way to do it?
7 Answ...
Is gettimeofday() guaranteed to be of microsecond resolution?
...). On a "normal" linux, though, I believe the resolution of gettimeofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no.
You should look into clock_gettime(CLOCK_MONOTONIC) for ...
Hudson or Teamcity for continuous integration? [closed]
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Team City is by far and away the best CI server out there. Its killer feature for me is the tight integration with IDEs (IntelliJ, Eclipse and VisualStudio). It can show you, for example, when a file you're editing in the IDE becomes...
Java - get the current class name?
All I am trying to do is to get the current class name, and java appends a useless non-sense $1 to the end of my class name. How can I get rid of it and only return the actual class name?
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Preferred way to create a Scala list
There are several ways to construct an immutable list in Scala (see contrived example code below). You can use a mutable ListBuffer, create a var list and modify it, use a tail recursive method, and probably others that I don't know about.
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What exactly is Spring Framework for? [closed]
... hear a lot about Spring , people are saying all over the web that Spring is a good framework for web development. What exactly is Spring Framework for?
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