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Detect enter press in JTextField
...d textField = new JTextField(10);
textField.addActionListener( action );
Now the event is fired when the Enter key is used.
Also, an added benefit is that you can share the listener with a button even if you don't want to make the button a default button.
JButton button = new JButton("Do Someth...
Is it good style to explicitly return in Ruby?
......
def plus_one_to_y(x)
@y = x + 1
puts "In plus_one_to_y"
end
Now the function is broken if anything expects a returned value. If nothing expects a returned value, it's fine. Clearly if somewhere further down the code chain, something calling this is expecting a returned value, it's g...
Using CookieContainer with WebClient class
...ed a CookieContainer with HttpWebRequest and HttpWebResponse sessions, but now, I want to use it with a WebClient. As far as I understand, there is no built-in method like there is for HttpWebRequests ( request.CookieContainer ). How can I collect cookies from a WebClient in a CookieContainer?
...
Fastest way to list all primes below N
...tmp) )//const
del_mult(tmptk[off], start, prime)
# now we go back to top tk1, so we need to increase pos by 1
pos += 1
cpos = const * pos
# 30k + 1
if tk1[pos]:
prime = cpos + 1
p.append(prime)
lastadded = 1
...
Javascript array search and remove string?
...'B', 'C', 'B'];
t.splice(t.indexOf('B'), 1); // will return ['B'] and t is now equal to ['A', 'C', 'B']
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git: Switch branch and ignore any changes without committing
...bsentmindedly made minor changes to the code that are not worth keeping. I now want to change branches, but git gives me,
1...
Rails extending ActiveRecord::Base
...y-patching.
Some people, when confronted with a problem, think “I know, I'll use
monkey patching.” Now they have two problems.
Monkey patching is easy and quick. But, the time and effort saved is always extracted back
sometime in the future; with compound interest. These days I limi...
Convert NSArray to NSString in Objective-C
...rWords = [myString componentsSeparatedByString:@" "];
// yourWords is now: [@"This", @"is", @"a", @"test", @"string"]
if you need to split on a set of several different characters, use NSString’s componentsSeparatedByCharactersInSet:
NSString *yourString = @"Foo-bar/iOS-Blog";
NSArray *you...
Hidden features of mod_rewrite
...
Dude, totally the best article on the internet now on mod rewrite. I hate that thing. Im a lighttpd heretic because of how much i hate mod_rewrite.
– Kent Fredric
Nov 13 '08 at 1:20
...
What does the “map” method do in Ruby?
..., convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:
Danil is a programmer
Edmund is a programmer
...