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How to round a number to n decimal places in Java
...ues into account. Floating point values have a binary representation internally. That means that a value like 2.7735 does not actually have that exact value internally. It can be slightly larger or slightly smaller. If the internal value is slightly smaller, then it will not round up to 2.7740. To r...
How to make sure that string is valid JSON using JSON.NET
...false;}
strInput = strInput.Trim();
if ((strInput.StartsWith("{") && strInput.EndsWith("}")) || //For object
(strInput.StartsWith("[") && strInput.EndsWith("]"))) //For array
{
try
{
var obj = JToken.Parse(strInput);
return ...
Multiple arguments to function called by pthread_create()?
...struct arg_struct));
And pass this arguments like this:
pthread_create(&tr, NULL, print_the_arguments, (void *)args);
Don't forget free args! ;)
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How can I determine if a date is between two dates in Java? [duplicate]
...o something
Date d; // the date in question
return d.after(min) && d.before(max);
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Two single-column indexes vs one two-column index in MySQL?
... as each field also needs to be searchable individually, it would just add php overhead. Also, the new key would be a (longer) string instead of a (shorter) integer.
– Tom
Feb 28 '10 at 4:35
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How to change the remote repository for a git submodule?
...th.
If repo history is different then you need to checkout new branch manually:
git submodule sync --recursive
cd <submodule_dir>
git fetch
git checkout origin/master
git branch master -f
git checkout master
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...ing S of length n, and we want to find three evenly spaced 1s in it. For example, S may be 110110010, where n=9. It has evenly spaced 1s at positions 2, 5, and 8.
Scan S left to right, and make a list L of positions of 1. For the S=110110010 above, we have the list L = [1, 2, 4, 5, 8]. This step i...
What is the @Html.DisplayFor syntax for?
.... It's still very applicable to MVC3:
http://www.dalsoft.co.uk/blog/index.php/2010/04/26/mvc-2-templates/
It's also useful if your Model has a Data annotation. For instance, if the property on the model is decorated with the EmailAddress data annotation, DisplayFor will render it as a mailto: li...
angularjs newline filter with no other html
...parse and display \n as new lines. Works great for me.
Here, a jsFiddle example.
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How can I add a help method to a shell script?
...
here's an example for bash:
usage="$(basename "$0") [-h] [-s n] -- program to calculate the answer to life, the universe and everything
where:
-h show this help text
-s set the seed value (default: 42)"
seed=42
while getopts ...