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Java: Static Class?
...tantiating an instance of it makes no semantic sense, but I still want to call its methods. What is the best way to deal with this? Static class? Abstract?
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In Java, what does NaN mean?
...ce
some undefined result. For example,
0.0 divided by 0.0 is arithmetically undefined. Taking the square root of a
negative number is also undefined.
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HashSet vs LinkedHashSet
...ax(2*c.size(), 11), .75f, true); // <-- boolean dummy argument
addAll(c);
}
And (one example of) a HashSet constructor that takes a boolean argument is described, and looks like this:
/**
* Constructs a new, empty linked hash set. (This package private
* constructor is only used by Li...
Could not load file or assembly … The parameter is incorrect
...s
This list will grow as if you have other versions of the framework installed.
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Finding the mode of a list
Given a list of items, recall that the mode of the list is the item that occurs most often.
24 Answers
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Express.js req.body undefined
...ress.bodyParser() is no longer bundled as part of express. You need to install it separately before loading:
npm i body-parser
// then in your app
var express = require('express')
var bodyParser = require('body-parser')
var app = express()
// create application/json parser
var jsonParser = body...
Wrong syntax highlighting for PHP file in PHPStorm
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You sir... are a saint... this has been driving me up a wall.. For anyone wondering, just look under text files, sure enough at the end, i had like 10 files that had driven me nuts.... WOOT! YOU ROCK!
– Destreyf
Apr 29 '14 at 1:41
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Medium-size Clojure sample application?
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You can also checkout "ClojureScript" under the same source tree.
Allows code written in a very small
subset of Clojure to be automatically translated to JavaScript.
The ClojureScript translator is a full Clojure app.
I'd also recomend checking out the Stewart Halloway's Port of P...
How do I check if string contains substring? [duplicate]
...))
This works because indexOf() returns -1 if the string wasn't found at all.
Note that this is case-sensitive.
If you want a case-insensitive search, you can write
if (str.toLowerCase().indexOf("yes") >= 0)
Or:
if (/yes/i.test(str))
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How to set background color of an Activity to white programmatically?
How can I set the background color of an Activity to white programatically?
11 Answers
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