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What is the difference between dynamic and static polymorphism in Java?
...different classes)
overloading example:
class Calculation {
void sum(int a,int b){System.out.println(a+b);}
void sum(int a,int b,int c){System.out.println(a+b+c);}
public static void main(String args[]) {
Calculation obj=new Calculation();
obj.sum(10,10,10); // 30
obj...
Extract only right most n letters from a string
...Any of the answers that use a function wrapper are better suited to code maintanance than a regular expression. An extension method (or standard function if .NET 2.0) is the best solution.
– stevehipwell
Nov 12 '09 at 14:57
...
Format numbers to strings in Python
...o both. I shamelessly ripped this stuff straight out of my hardcore Python intro book and the slides for the Intro+Intermediate Python courses I offer from time-to-time. :-)
Aug 2018 UPDATE: Of course, now that we have the f-string feature in 3.6, we need the equivalent examples of that, yes anothe...
Concept behind these four lines of tricky C code
... 0x2B '+' 0x43 'C'
This pattern corresponds to the string that you see printed, only backwards. At the same time, the second element of the array becomes zero, providing null terminator, making the string suitable for passing to printf().
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Java: Integer equals vs. ==
As of Java 1.5, you can pretty much interchange Integer with int in many situations.
7 Answers
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What is the difference between a field and a property?
...horthand syntax
// used to generate a private field for you
public int AnotherProperty{get;set;}
}
@Kent points out that Properties are not required to encapsulate fields, they could do a calculation on other fields, or serve other purposes.
@GSS points out that you can also do other log...
Select values from XML field in SQL Server 2008
...My XML is <BAM><Type>Electrical</Type><BaIds><a:int>7330</a:int></BaIds></BAM>, my select is select e.MessageData.value('(/BAM/Type)[1]', 'varchar(100)'). I have also tried select e.MessageData.value('(/BAM/Type/node())[1]', 'varchar(100)'), and '(//Ty...
Transferring ownership of an iPhone app on the app store
... This answer should be downvoted. It seems that the guy just converted his indie account to a business account, which obviously will keep all your app reviews and updates.
– samvermette
Oct 30 '12 at 21:53
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Map Tiling Algorithm
...to me. I'm dealing with a case where some tiles cannot transition directly into others. For example, the "dirt" tiles can transition into "light grass" and "light grass" can transition into "medium grass." Tiled (mapeditor.org) does a great job of handling this by implementing some type of tree sear...
General suggestions for debugging in R
...on(y) warning("don't want to use 'y'!")
> foo(1)
Error in bar(x + 2) : (converted from warning) don't want to use 'y'!
> traceback()
7: doWithOneRestart(return(expr), restart)
6: withOneRestart(expr, restarts[[1L]])
5: withRestarts({
.Internal(.signalCondition(simpleWarning(msg, call), ...