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How to nicely format floating numbers to String without unnecessary decimal 0?
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If the idea is to print integers stored as doubles as if they are integers, and otherwise print the doubles with the minimum necessary precision:
public static String fmt(double d)
{
if(d == (long) d)
return String.format("%...
Creating a segue programmatically
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By definition a segue can't really exist independently of a storyboard. It's even there in the name of the class: UIStoryboardSegue. You don't create segues programmatically - it is the storyboard runtime that creates them for you. You can normally call perfo...
What is a regular expression which will match a valid domain name without a subdomain?
...:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
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const char * const versus const char *?
...e myself with C++ and I have run into the following question. First, here is the example code:
12 Answers
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Why is semicolon allowed in this python snippet?
Python does not warrant the use of semicolons to end statements.
So why is this (below) allowed?
15 Answers
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
Following on from this question , can someone explain the following in Scala:
4 Answers
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Should I always use a parallel stream when possible?
... amount of items to process (or the processing of each item takes time and is parallelizable)
I have a performance problem in the first place
I don't already run the process in a multi-thread environment (for example: in a web container, if I already have many requests to process in parallel, adding...
Best Timer for using in a Windows service
... windows service which will execute every N period of time.
The question is:
Which timer control should I use: System.Timers.Timer or System.Threading.Timer one? Does it influence on something?
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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
...eger (capital I) the compiler emits:
Integer b2 =Integer.valueOf(127)
This line of code is also generated when you use autoboxing.
valueOf is implemented such that certain numbers are "pooled", and it returns the same instance for values smaller than 128.
From the java 1.6 source code, line 621...
What is the difference between old style and new style classes in Python?
What is the difference between old style and new style classes in Python? When should I use one or the other?
8 Answers
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