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How do I cast a variable in Scala?
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The preferred technique is to use pattern matching. This allows you to gracefully handle the case that the value in question is not of the given type:
g match {
case g2: Graphics2D => g2
case _ => throw new ClassCastException
}
This block replicates the...
How to use conditional breakpoint in Eclipse?
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Put your breakpoint.
Right-click the breakpoint image on the margin and choose Breakpoint Properties:
Configure condition as you see fit:
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Get current stack trace in Ruby without raising an exception
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You can use Kernel#caller:
# /tmp/caller.rb
def foo
puts caller # Kernel#caller returns an array of strings
end
def bar
foo
end
def baz
bar
end
baz
Output:
caller.rb:8:in `bar'
caller.rb:12:in `baz'
caller.rb:15:in `<main>'
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Creating a JavaScript cookie on a domain and reading it across sub domains
Below is a JavaScript cookie that is written on the user's computer for 12 months.
4 Answers
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How do I install a module globally using npm?
I recently installed Node.js and npm module on OSX and have a problem with the settings I think:
7 Answers
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How to set working/current directory in Vim?
So when I want to create a new file by using the :e command I don't want to specify the whole path, just the new filenam>me m>. Can it be done?
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Java - Including variables within strings?
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You can always use String.format(....). i.e.,
String string = String.format("A String %s %2d", aStringVar, anIntVar);
I'm not sure if that is attractive enough for you, but it can be quite handy. The syntax is the sam>me m> as for printf and java.util.For...
JSR-303 @Valid annotation not working for list of child objects
My main classes is
4 Answers
4
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runOnUiThread in fragm>me m>nt
I'm trying to convert an Activity to fragm>me m>nt. The error mark on runOnUiThread .
on the past:
6 Answers
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How to get the list of all printers in computer
I need to get the list of all printers that connect to computer?
6 Answers
6
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