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What is a NullPointerException, and how do I fix it?
..., for that matter). When I try to dive right into explanations like that, my students look at me crosseyed, because there's not enough background.
– mmr
Feb 20 '09 at 4:06
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A simple command line to download a remote maven2 artifact to the local repository?
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@domi (belated answer for posterity): use "-Ddest=path/to/my.jar"; otherwise, it is just copied to your local ~/.m2/repository (makes it look like nothing happened). See maven.apache.org/plugins/maven-dependency-plugin/… =example=> mvn org.apache.maven.plugins:maven-dependency-...
What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...ompletely incorrect, and is just a result of the confusion about patterns. My answer below clarifies - there is Abstract Factory pattern, then there is Factory Method pattern, and then there are confused people who think Abstract Factory means factory of other factories. Factory is just a generic te...
How can I make a div stick to the top of the screen once it's been scrolled to?
...().top; and get rid of the empty scroller-anchor div all together? Here's my fork demonstrating what I'm talking about.
– Mike Deck
Jan 27 '12 at 6:21
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How do I use disk caching in Picasso?
I am using Picasso to display image in my android app:
9 Answers
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Why is __init__() always called after __new__()?
I'm just trying to streamline one of my classes and have introduced some functionality in the same style as the flyweight design pattern .
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How do I Moq a method that has an optional argument in its signature without explicitly specifying i
...kly know that there's one Foo function that accepts two parameters. That's my 2 cents, at least :)
As for specifying it every time you mock it, don't duplicate code: create and/or initialise the mock in a function, so that you only have a single point of change. If you really want to, you can overc...
Get pandas.read_csv to read empty values as empty string instead of nan
I'm using the pandas library to read in some CSV data. In my data, certain columns contain strings. The string "nan" is a possible value, as is an empty string. I managed to get pandas to read "nan" as a string, but I can't figure out how to get it not to read an empty value as NaN. Here's sam...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...est assignments quickly. This procedure below takes less than 5 seconds on my 5 year old laptop.
Let's assume the student has to develop a program that takes unsigned ints, each on their own line, until a line with "-1" arrives. The program should then average all the ints and output "Average: %f"....
How to get a time zone from a location using latitude and longitude coordinates?
...her Ideas
Find the nearest city with an R-Tree
Find the nearest city with MySQL
Please update this list if you know of any others
Also, note that the nearest-city approach may not yield the "correct" result, just an approximation.
Conversion To Windows Zones
Most of the methods listed will return ...