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Scrolling down both parts of a split-window at the same time in Vim
Is it possible to scroll down the left and right parts of a vertically split window in Vim? I have two files I would like to compare roughly. Each line of these files looks almost the same.
...
How to check that a string is an int, but not a double, etc.?
... (ctype_digit($testcase)) {
echo "The string $testcase consists of all digits.\n";
} else {
echo "The string $testcase does not consist of all digits.\n";
}
}
?>
The above example will output:
The string 1820.20 does not consist of all digits.
The string 10002 consists...
Understanding checked vs unchecked exceptions in Java
.... these that you should explicitly catch or rethrow) should not be used at all. They were eliminated in C# for example, and most languages don't have them. So you can always throw a subclass of RuntimeException (unchecked exception)
However, I think checked exceptions are useful - they are used whe...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...s for it:
x86 is a relatively old ISA (its progenitors were 8086s, after all)
x86 has evolved significantly several times, but hardware is required to maintain backwards compatibility with old binaries. For example, modern x86 hardware still contains support for running 16 bit code natively. Addit...
Detect browser or tab closing
...closed. Also, the onbeforeunload is non-standard, so it's not supported by all browsers.
– Guffa
Oct 8 '10 at 8:45
8
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WSDL vs REST Pros and Cons
...lso lets you layer things like WS-Security on your documents. SOAP is generally transport-agnostic, meaning you don't necessarily need to use HTTP.
REST is very lightweight, and relies upon the HTTP standard to do it's work. It is great to get a useful web service up and running quickly. If you d...
Difference between java.util.Random and java.security.SecureRandom
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The standard Oracle JDK 7 implementation uses what's called a Linear Congruential Generator to produce random values in java.util.Random.
Taken from java.util.Random source code (JDK 7u2), from a comment on the method protected int next(int bits), which is the one that genera...
Classpath including JAR within a JAR
...of) to do that. The first is One-Jar, which uses a special classloader to allow the nesting of jars. The second is UberJar, (or Shade), which explodes the included libraries and puts all the classes in the top-level jar.
I should also mention that UberJar and Shade are plugins for Maven1 and Mave...
Why does Java allow us to compile a class with a name different than the file name?
...
The rationale is to allow more than one top-level class per .java file.
Many classes—such as event listeners—are of local use only and the earliest versions of Java did not support nested classes. Without this relaxation of the "filename = ...
Why does flowing off the end of a non-void function without returning a value not produce a compiler
...C++ 6.6.3/2 is not the same in C.
gcc will give you a warning if you call it with -Wreturn-type option.
-Wreturn-type Warn whenever a function is defined with a return-type that
defaults to int. Also warn about any
return statement with no return-value
in a function whose return-type ...