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Difference between sh and bash
... the POSIX shell language.
bash supports a --posix switch, which makes it more POSIX-compliant. It also tries to mimic POSIX if invoked as sh.
sh = bash?
For a long time, /bin/sh used to point to /bin/bash on most GNU/Linux systems. As a result, it had almost become safe to ignore the difference ...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
... chunk of code that you can call from your own code, to help you do things more quickly/easily. For example, a Bitmap Processing library will provide facilities for loading and manipulating bitmap images, saving you having to write all that code for yourself. Typically a library will only offer one ...
What does “zend_mm_heap corrupted” mean
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Just what is Java EE really? [closed]
...in flavors of standard Java (Oracle JVM/SDK | OpenJDK JVM/JDK)?
There are more than just two flavors of Java SE. There is at least the IBM JDK, the previous BEA one (JRocket, which is being merged into the Oracle/Sun one because of the acquisition), various other open source implementations and a s...
How to use auto-layout to move other views when a view is hidden?
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Covariance, Invariance and Contravariance explained in plain English?
...In Java, arrays are covariant)
This was still rather abstract. To make it more concrete, let's look at which operations in Java are defined in terms of the subtype relation. The simplest example is assignment. The statement
x = y;
will compile only if typeof(y) ≤ typeof(x). That is, we have j...
What is the { get; set; } syntax in C#?
..., can you explain what will happen with this code? It could benefit from a more thorough explanation.
– TylerH
Nov 17 '14 at 18:53
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Strangest language feature
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Or, more usefully, "0123456789abcdef"[x & 0xf]
– Dipstick
Jan 3 '10 at 15:33
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Get string character by index - Java
...AtZero = text.charAt(0);
System.out.println(charAtZero); // Prints f
For more information, see the Java documentation on String.charAt. If you want another simple tutorial, this one or this one.
If you don't want the result as a char data type, but rather as a string, you would use the Character....
Node.js / Express.js - How does app.router work?
...it will either call the next middleware by using next() or make it so no more middleware get called. That means that the order in which I place my middleware calls is important, because some middleware depends on other middleware, and some middleware near the end might not even be called.
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