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Why should I use the keyword “final” on a method parameter in Java?
...riable, or argument/parameter variable, the effect is entirely the same.
Example
Let’s see the effect in action.
Consider this simple method, where the two variables (arg and x) can both be re-assigned different objects.
// Example use of this method:
// this.doSomething( "tiger" );
void do...
Scala equivalent of Java java.lang.Class Object
The question is best explained by an example:
2 Answers
2
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Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
7 Answers
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Any way to properly pretty-print ordered dictionaries?
...sending it on to the output stream. While the final output produced isn't exceptionalily pretty, it's decent and may be "good enough" to use as a workaround.
Update 2.0
Simplified by using standard library textwrap module, and modified to work in
both Python 2 & 3.
from collections import Ord...
Why does Java's hashCode() in String use 31 as a multiplier?
...
Well all primes are odd, except 2. Just sayin.
– Kip
Nov 18 '08 at 20:15
38
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JavaScript “new Array(n)” and “Array.prototype.map” weirdness
I've observed this in Firefox-3.5.7/Firebug-1.5.3 and Firefox-3.6.16/Firebug-1.6.2
14 Answers
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Copy values from one column to another in the same table
...sions where developers have thought like laymen.
– Zaxter
Mar 6 '16 at 11:35
9
Careful if you are...
Who is listening on a given TCP port on Mac OS X?
On Linux, I can use netstat -pntl | grep $PORT or fuser -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
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Days between two dates? [duplicate]
...s assumed "days" refers to just the day portion of the difference. So for example difference between 2010 and 2011 would be 0 days and 1 year, but turns out it does report 365 days as I wanted.
– Bemmu
Nov 25 '11 at 10:03
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What are the mathematical/computational principles behind this game?
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Finite Projective Geometries
The axioms of projective (plane) geometry are slightly different than the Euclidean geometry:
Every two points have exactly one line that passes through them (this is the same).
Every two lines meet in exactly one point (this is...