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Retain precision with double in Java
...ave an exact representation of 11.4.
Now, a little explanation into why this is happening:
The float and double primitive types in Java are floating point numbers, where the number is stored as a binary representation of a fraction and a exponent.
More specifically, a double-precision floating po...
Is there any significant difference between using if/else and switch-case in C#?
What is the benefit/downside to using a switch statement vs. an if/else in C#. I can't imagine there being that big of a difference, other than maybe the look of your code.
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When do you use POST and when do you use GET?
...rather than simply deleting the item. It's far easier to avoid accidents this way.
POST is also more secure than GET, because you aren't sticking information into a URL. And so using GET as the method for an HTML form that collects a password or other sensitive information is not the best idea.
On...
Go Error Handling Techniques [closed]
I'm just getting started with Go. My code is starting to have a lot of this:
11 Answers
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Difference between variable declaration syntaxes in Javascript (including global variables)?
Is there any difference between declaring a variable:
5 Answers
5
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Scalar vs. primitive data type - are they the same thing?
...e interchangeable. They are frequently similar, but the difference does exist, and seems to mainly be in what they are contrasted with and what is relevant in context.
Scalars are typically contrasted with compounds, such as arrays, maps, sets, structs, etc. A scalar is a "single" value - integer...
Return value in a Bash function
...though bash has a return statement, the only thing you can specify with it is the function's own exit status (a value between 0 and 255, 0 meaning "success"). So return is not what you want.
You might want to convert your return statement to an echo statement - that way your function output could be...
Catching java.lang.OutOfMemoryError?
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I agree and disagree with most the responses here.
There are a number of scenarios where you may wish to catch an OutOfMemoryError and in my experience (on Windows and Solaris JVMs), only very infrequently is OutOfMemoryError the death-k...
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
...on a Smartphone / Tablet app, using only one APK, and loading resources as is needed depending on screen size, the best design choice seemed to be using Fragments via the ACL.
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Regular expression for floating point numbers
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TL;DR
Use [.] instead of \. and [0-9] instead of \d to avoid escaping issues in some languages (like Java).
Thanks to the nameless one for originally recognizing this.
One relatively simple pattern for matching a floating point number is
[+-]?([0-9]*[.])?[0-9]+
This will match:
123
123....