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Sort ArrayList of custom Objects by property
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Since Date implements Comparable, it has a compareTo method just like String does.
So your custom Comparator could look like this:
public class CustomComparator implements Comparator<MyObject> {
@Override
public int compare(MyObject o1, MyObject...
View differences of branches with meld?
I know that I can view the difference between HEAD and current state with meld . . But how can I view the differences between branches, for example master and devel with meld?
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How to calculate the angle between a line and the horizontal axis?
... is more of a directed line segment, not a "line", since lines extend infinitely and don't start at a particular point).
deltaY = P2_y - P1_y
deltaX = P2_x - P1_x
Then calculate the angle (which runs from the positive X axis at P1 to the positive Y axis at P1).
angleInDegrees = arctan(deltaY / d...
How do I put all required JAR files in a library folder inside the final JAR file with Maven?
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The following is my solution. Test it if it works for you:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
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Download and open PDF file using Ajax
...ax for this. Just an <a> link is enough if you set the content-disposition to attachment in the server side code. This way the parent page will just stay open, if that was your major concern (why would you unnecessarily have chosen Ajax for this otherwise?). Besides, there is no way to handle ...
Ignore python multiple return value
... -1: this "convention" sucks when you add gettext functionality to someone else's code (that defines a function called '_') so it should be banned
– nosklo
Jan 11 '09 at 13:32
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Making TextView scrollable on Android
I am displaying text in a textview that appears to be too long to fit
into one screen. I need to make my TextView scrollable. How can I do
that?
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How can I get all the request headers in Django?
...ad, Django simply dumps everything into the request.META variable along with a lot aof other data. What would be the best way to get all the headers that the client sent to my Django application?
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How to change the remote repository for a git submodule?
I've created a git repository with a submodule in it. I'm able to tell the submodule itself to change its remote repository path, but I'm not sure how to tell the parent repository how to change the remote repository path for the submodule.
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What does the `#` operator mean in Scala?
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To explain it, we first have to explain nested classes in Scala. Consider this simple example:
class A {
class B
def f(b: B) = println("Got my B!")
}
Now let's try something with it:
scala> val a1 = new A
a1: A = A@2fa8ecf4
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