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Check if application is installed - Android
I'm trying to install apps from Google Play. I can understand that on opening the Google Play store URL, it opens the Google Play and when I press the back button, the activity resumes.
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Convert Long into Integer
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or if you don't need to worry about null:
// auto-unboxing does not go from Long to int directly, so
Integer i = (int) (long) theLong;
And in both situations, you might run into overflows (because a Long can store a wider range than an Integer).
Java 8 has a helper method that checks for over...
A top-like utility for monitoring CUDA activity on a GPU
... Nvidia-smi have this building loop! Is the "watch" command very different from the nvidia-smi -l ?
– Mohammad Javad
Jan 13 at 1:22
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Linux - Install redis-cli only
...x server with Redis installed and I want to connect to it via command line from my local Linux machine.
12 Answers
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Why is creating a Thread said to be expensive?
...urces as long as it is alive; e.g. the thread stack, any objects reachable from the stack, the JVM thread descriptors, the OS native thread descriptors.
The costs of all of these things are platform specific, but they are not cheap on any Java platform I've ever come across.
A Google search foun...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...;> raise Rails.root
RuntimeError: /home/marcin/work/github/project1
from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http://www.sitepoint.com/article/debug-rails-app-ruby-debug/
http://www.datanoise.com/arti...
Losing scope when using ng-include
... child scope. This scope prototypically inherits (see dashed lines below) from the HomeCtrl scope. ng-model="lineText" actually creates a primitive scope property on the child scope, not HomeCtrl's scope. This child scope is not accessible to the parent/HomeCtrl scope:
To store what the user t...
Bootstrap table without stripe / borders
...t see table-borderless in this doc getbootstrap.com/docs/3.3/css/#tables . From where it came?
– Arup Rakshit
Oct 24 '17 at 8:25
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Unit testing code with a file system dependency
...amFactory (perhaps called FileStreamFactory) would return FileOutputStream from outputStream() and would write to a File.
What was interesting about the write method here is that it was writing the contents out Base64 encoded, so that's what we tested for. For your DoIt() method, this would be more...
Difference between web server, web container and application server
...eb Server:
It provides HTTP Request and HTTP response.
It handles request from client only through HTTP protocol.
It contains Web Container.
Web Application mostly deployed on web Server.
EX: Servlet JSP
Web Container:
it maintains the life cycle for Servlet Object.
Calls the service method for th...