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How do I check if a file exists in Java?
...a.io.File.exists() (from my small benchmark on the only computer I tested: Windows Server 2012 running Java 1.7.0_45 x64).
– Matthieu
May 16 '17 at 16:53
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Check if a div exists with jquery [duplicate]
... seems to me that .length defeats .length > 0, so it's kind of a double-win. Still, thanks for pointing this out.
– karim79
Nov 27 '13 at 23:44
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No internet on Android emulator - why and how to fix? [closed]
...rnet on emulator if you are setting behind a proxy server perform the following steps:
Go to settings->Wireless & networks->mobile networks->Access Point Names.
Press menu button. an option menu will appear.
from the option menu select New APN.
Click on Name. provide name to apn say M...
How do you copy and paste into Git Bash
I'm using msysgit running on Windows XP.
30 Answers
30
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Why does string::compare return an int?
...ll the way to one of them
// ends. If the length isn't equal, "longest" wins.
return a.length() - b.length();
}
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Is there a performance gain in using single quotes vs double quotes in ruby?
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$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assign doub...
How to set a JVM TimeZone Properly
...one instead of an OS defined timezone. My JDK version is 1.5 and the OS is Windows Server Enterprise (2007)
7 Answers
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
I'm attempting to deploy my code to heroku with the following command line:
34 Answers
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How to get the user input in Java?
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You can use any of the following options based on the requirements.
Scanner class
import java.util.Scanner;
//...
Scanner scan = new Scanner(System.in);
String s = scan.next();
int i = scan.nextInt();
BufferedReader and InputStreamReader classes
impo...
Ruby capitalize every word first letter
...swered May 11 '15 at 6:15
tint lwin lwin wintint lwin lwin win
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