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NullPointerException in Java with no StackTrace
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You are probably using the HotSpot JVM (originally by Sun Microsystems, later bought by Oracle, part of the OpenJDK), which performs a lot of optimization. To get the stack traces back, you need to pass the option -XX:-OmitStackTraceInFastThrow to the JVM.
The opt...
How to check if object (variable) is defined in R?
I'd like to check if some variable is defined in R - without getting an error. How can I do this?
6 Answers
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How do you create a daemon in Python?
... (Standard daemon process library) is now available as python-daemon.
Historical answer
Sander Marechal's code sample is superior to the original, which was originally posted in 2004. I once contributed a daemonizer for Pyro, but would probably use Sander's code if I had to do it over.
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How do I use Assert.Throws to assert the type of the exception?
...Assert.Throws to assert the type of the exception and the actual message wording?
7 Answers
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How to draw a circle with text in the middle?
...le
.circle {
width: 500px;
height: 500px;
line-height: 500px;
border-radius: 50%;
font-size: 50px;
color: #fff;
text-align: center;
background: #000
}
<div class="circle">Hello I am A Circle</div>
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What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
When storing latitude or longitude data in an ANSI SQL compliant database, what datatype would be most appropriate? Should float be used, or decimal , or ...?
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Iterating through a JSON object
I am trying to iterate through a JSON object to import data, i.e. title and link. I can't seem to get to the content that is past the : .
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Center a column using Twitter Bootstrap 3
...ey is to set an offset equal to half of the remaining size of the row. So for example, a column of size 2 would be centered by adding an offset of 5, that's (12-2)/2.
In markup this would look like:
<div class="row">
<div class="col-md-2 col-md-offset-5"></div>
</div>
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Simplest way to do a fire and forget method in C#?
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ThreadPool.QueueUserWorkItem(o => FireAway());
(five years later...)
Task.Run(() => FireAway());
as pointed out by luisperezphd.
share
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How to enable CORS in AngularJs
I have created a demo using JavaScript for Flickr photo search API.
Now I am converting it to the AngularJs.
I have searched on internet and found below configuration.
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