How to create a virtual device with Android Studio

From your Android Studio, as show the picture below, click on:
Tools -> Android -> AVD Manager

Now click on "Create Virtual Device":

So select the category and the device name and click on "Next":

Select the Android OS and click on "Next":

Complete the configuration and click on "Finish":

The Virtual Device is ready. Run it as show the picture below:

 

SVN tutorial n 31 - propset

The "svn propset" commands sets a property name to a property value on files, directories and/or revisions. The synopsis is:

 svn propset PROPNAME [PROPVAL | -F VALFILE] PATH...

or

 svn propset PROPNAME --revprop -r REV [PROPVAL | -F VALFILE] [TARGET]

Examples:

Set the MIME type for a file:

 svn propset svn:mime-type image/jpeg file.jpg 
 property 'svn:mime-type' set on 'file.jpg'

On a Unix system, if you want a file to have the executable permission set:

 svn propset svn:executable ON myscript.sh
 property 'svn:executable' set on 'myscript.sh'

Perhaps you have an internal policy to set certain properties for the benefit of your coworkers:

 svn propset owner bob file.txt
 property 'owner' set on 'file.txt'

If you made a mistake in a log message for a particular revision and want to change it, use --revprop and set svn:log to the new log message:

 svn propset --revprop -r 99 svn:log "A comment"
 property 'svn:log' set on repository revision '99'

Or, if you don't have a working copy, you can provide a URL:

 svn propset --revprop -r 99 svn:log "A comment" http://mysvnrepo/svn/myproject/trunk
 property 'svn:log' set on repository revision '99'

Lastly, you can tell propset to take its input from a file. You could even use this to set the contents of a property to something binary:

 svn propset owner-pic -F file.jpg file.txt 
 property 'owner-pic' set on 'file.txt'

SVN tutorial n 30 - propget

The "svn propget" command prints the value of a property on files, directories, or revisions. The first form prints the versioned property of an item or items in your working copy, and the second prints unversioned remote properties on a repository revision.
The synopsi is:

svn propget PROPNAME [TARGET[@REV]...]

or

svn propget PROPNAME --revprop -r REV [URL]

Example:

svn proplist MyLauncher.java
Properties on 'MyLauncher.java':
  copyright
  license

svn propget copyright MyLauncher.java
(c) 2017 "L'informatica a modo mio" Blog

For more information about svn proplist command see the tutorial n 29.