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How to open the default webbrowser using java
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java.awt.Desktop is the class you're looking for.
import java.awt.Desktop;
import java.net.URI;
// ...
if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
Desktop.getDesktop().browse(new URI("http://www.example.co...
What's the difference between the data structure Tree and Graph?
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A Tree is just a restricted form of a Graph.
Trees have direction (parent / child relationships) and don't contain cycles.
They fit with in the category of Directed Acyclic Graphs (or a DAG).
So Trees are DAGs with the restriction that a child can only...
Sass or Compass without ruby?
Is there a way to use Sass or Compass or anything like that without Ruby?
7 Answers
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Purge or recreate a Ruby on Rails database
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Or, rather, it leaves the schema identical to what running all the migrations would have. But the migrations aren't run per se (so if you have migrations which insert data, that won't happen; for this, you should really use a...
Relative imports in Python 2.7
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Script vs. Module
Here's an explanation. The short version is that there is a big difference between directly running a Python file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is ...
Is an index needed for a primary key in SQLite?
...s a primary key in an SQLite table, should an index be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all the time).
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When to use an interface instead of an abstract class and vice versa?
... answered Jan 26 '09 at 9:01
Jorge CórdobaJorge Córdoba
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Invalid argument supplied for foreach()
It often happens to me to handle data that can be either an array or a null variable and to feed some foreach with these data.
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How can I check if a URL exists via PHP?
... edited Sep 21 at 16:58
Theodore R. Smith
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answered Feb 17 '10 at 12:10
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In Python, when to use a Dictionary, List or Set?
When should I use a dictionary, list or set?
11 Answers
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