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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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If statement in aspx page
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Normally you'd just stick the code in Page_Load in your .aspx page's code-behind.
if (someVar) {
Item1.Visible = true;
Item2.Visible = false;
} else {
Item1.Visible = false;
Item2.Visible = true;
}
This assumes...
Can I make a not submit a form?
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Wow, you and alex were really duking it out in the revisions. I don't see why either of you care about quotes or not on an attribute.
– ADJenks
Sep 6 '19 at 23:06
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How can you run a command in bash over until success
...y to Ctr-C out of this: until passwd; do echo "Try again"; sleep 2; done - all you have to do is press Ctr-C right after (within the two seconds given) the echo did it's job.
– Christian
Aug 23 '13 at 20:14
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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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How to call a shell script from python code?
How to call a shell script from python code?
12 Answers
12
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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...