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Computational complexity of Fibonacci Sequence
I understand Big-O notation, but I don't know how to calculate it for many functions. In particular, I've been trying to figure out the computational complexity of the naive version of the Fibonacci sequence:
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Round to at most 2 decimal places (only if necessary)
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Use Math.round(num * 100) / 100
Edit: to ensure things like 1.005 round correctly, we use
Math.round((num + Number.EPSILON) * 100) / 100
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What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
...Web Application context extended Application Context which is designed to work with the standard javax.servlet.ServletContext so it's able to communicate with the container.
public interface WebApplicationContext extends ApplicationContext {
ServletContext getServletContext();
}
Beans, inst...
Sending HTML email using Python
...L message with an alternative plain text version:
#! /usr/bin/python
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
# me == my email address
# you == recipient's email address
me = "my@email.com"
you = "your@email.com"
# Create message contai...
Assignment in an if statement
...the if statement, but isn't definitely assigned.
No, there isn't. It's more idiomatic to write this though:
Dog dog = animal as Dog;
if (dog != null)
{
// Use dog
}
Given that "as followed by if" is almost always used this way, it might make more sense for there to be an operator which per...
How to change checkbox's border style in CSS?
How can I change checkbox (input) border's style? I've put border:1px solid #1e5180 upon it, but in FireFox 3.5, nothing happens!
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Use ASP.NET MVC validation with jquery ajax?
...en you build up your view, you would define things like this:
@Html.LabelFor(Model => Model.EditPostViewModel.Title, true)
@Html.TextBoxFor(Model => Model.EditPostViewModel.Title,
new { @class = "tb1", @Style = "width:400px;" })
@Html.ValidationMessageFor(Mode...
EC2 Can't resize volume after increasing size
I have followed the steps for resizing an EC2 volume
14 Answers
14
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Show DialogFragment with animation growing from a point
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Being DialogFragment a wrapper for the Dialog class, you should set a theme to your base Dialog to get the animation you want:
public class CustomDialogFragment extends DialogFragment implements OnEditorActionListener
{
@Override
public View onCrea...
What is self-documenting code and can it replace well documented code? [closed]
...ry identifier (variable, method, class) has a clear semantic name. Having more comments than necessary actually makes it harder (!) to read the code, so if your colleague
writes documentation comments (Doxygen, JavaDoc, XML comments etc.) for every class, member, type and method AND
clearly commen...