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How to gracefully handle the SIGKILL signal in Java
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138
It is impossible for any program, in any language, to handle a SIGKILL. This is so it is always...
How do I do an initial push to a remote repository with Git?
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399
On server:
mkdir my_project.git
cd my_project.git
git --bare init
On client:
mkdir my_proj...
Java String - See if a string contains only numbers and not letters
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363
If you'll be processing the number as text, then change:
if (text.contains("[a-zA-Z]+") == fa...
How to animate the change of image in an UIImageView?
...ore/QuartzCore.h>
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imageView.image = [UIImage imageNamed:(i % 2) ? @"3.jpg" : @"4.jpg"];
CATransition *transition = [CATransition animation];
transition.duration = 1.0f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type =...
Sum a list of numbers in Python
I have a list of numbers such as [1,2,3,4,5...] , and I want to calculate (1+2)/2 and for the second, (2+3)/2 and the third,
(3+4)/2 , and so on. How can I do that?
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How to find Unused Amazon EC2 Security groups
...are the 2 lists and see what's not being used from the master list:
comm -23 <(aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId' --output text | tr '\t' '\n'| sort) <(aws ec2 describe-instances --query 'Reservations[*].Instances[*].SecurityGroups[*].GroupId' --output text ...
Calling JMX MBean method from a shell script
...URL as JmxUrl
def serverUrl = 'service:jmx:rmi:///jndi/rmi://localhost:9003/jmxrmi'
String beanName = "com.webwars.gameplatform.data:type=udmdataloadsystem,id=0"
def server = JmxFactory.connect(new JmxUrl(serverUrl)).MBeanServerConnection
def dataSystem = new GroovyMBean(server, beanName)
println ...
Upload failed You need to use a different version code for your APK because you already have one wit
... Play's Developer Console? I have just changed the version code from 2 to 3 and it failed to upload the build.
19 Answers
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When to use f:viewAction / preRenderView versus PostConstruct?
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answered Mar 23 '12 at 18:27
BalusCBalusC
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Rails respond_with: how does it work?
...eading here and there about how cool the respond_with method is in Rails 3. But I can't even find a reference to it in either the Rails APIs or by searching the source. Can anyone either explain to me how it works (what options you can use, etc) or point me to the place it's actually implemented s...