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How to check programmatically if an application is installed or not in Android?
...am getting a exception "java.lang.RuntimeException: Adding window failed" and " E/AndroidRuntime(7554): Caused by: android.os.TransactionTooLargeException 05-14 11:37:25.305: E/AndroidRuntime(7554): at android.os.BinderProxy.transact(Native Method) 05-14 11:37:25.305: E/AndroidRuntime(7554): at...
Default value of BOOL
...ective-C objects are always set to 0 (or nil) when you allocate an object" and I cannot find any other, clearer, reference, so it's all a bit contradictory to me.
– Kristof Van Landschoot
Sep 9 '13 at 8:47
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Windows can't find the file on subprocess.call()
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When the command is a shell built-in, add a 'shell=True' to the call.
E.g. for dir you would type:
import subprocess
subprocess.call('dir', shell=True)
To quote from the documentation:
The only time you need to specify shell=True ...
Why specify @charset “UTF-8”; in your CSS file?
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It tells the browser to read the css file as UTF-8. This is handy if your CSS contains unicode characters and not only ASCII.
Using it in the meta tag is fine, but only for pages that include that meta tag.
Read about the rules for character set resolution of CSS files at the w3c spe...
Command to change the default home directory of a user
I would like to know whether there is any simple shell command to change the user home directory in Linux/Unix (one similar to chsh which changes the default login shell of an existing valid user) without touching the /etc/passwd file. Thanks
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svn : how to create a branch from certain revision of trunk
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Check out the help command:
svn help copy
-r [--revision] arg : ARG (some commands also take ARG1:ARG2 range)
A revision argument can be one of:
NUMBER revision number
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Bypass confirmation prompt for pip uninstall
...e the yeses would get gobbled by the pip freeze not the xargs argument/command, pip uninstall.
– hobs
May 25 '13 at 0:10
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How do I find which transaction is causing a “Waiting for table metadata lock” state?
I am trying to perform some DDL on a table and SHOW PROCESSLIST results in a " Waiting for table metadata lock " message.
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relative path in BAT script
...sewhere (XP, Vista oder Windwos 8 --> I don't know but: Microsoft logic and I couldn't find any docs about it ;)). However, I found that I had to put quotation marks around it ("%~dp0\bin\Iris.exe") as the path had a whitespace in it :) Just to be really sure it works on every computer.
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
The C++11 Standard (ISO/IEC 14882:2011) says in § C.1.1 :
3 Answers
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