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UnicodeDecodeError, invalid continuation byte
...t’s just the mechanical cause of the exception. In this case, you have a string that is almost certainly encoded in latin 1. You can see how UTF-8 and latin 1 look different:
>>> u'\xe9'.encode('utf-8')
b'\xc3\xa9'
>>> u'\xe9'.encode('latin-1')
b'\xe9'
(Note, I'm using a mix o...
How can I get System variable value in Java?
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Use the System.getenv(String) method, passing the name of the variable to read.
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Check if application is installed - Android
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Try this:
private boolean isPackageInstalled(String packageName, PackageManager packageManager) {
try {
packageManager.getPackageInfo(packageName, 0);
return true;
} catch (PackageManager.NameNotFoundException e) {
return false;
}
}
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How to get a json string from url?
...Use the WebClient class in System.Net:
var json = new WebClient().DownloadString("url");
Keep in mind that WebClient is IDisposable, so you would probably add a using statement to this in production code. This would look like:
using (WebClient wc = new WebClient())
{
var json = wc.DownloadSt...
PHP + curl, HTTP POST sample code?
... CURLOPT_RETURNTRANSFER means that curl_exec will return the response as a string rather than outputting it.
– bnp887
Dec 28 '16 at 14:27
5
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How do I run IDEA IntelliJ on Mac OS X with JDK 7?
...o.plist file, and changed this bit:
<key>JVMVersion</key>
<string>1.6*</string>
to:
<key>JVMVersion</key>
<string>1.8*</string>
After launching, everything was golden.
sh...
TSQL - Cast string to integer or return default value
...ISNUMERIC() has a few issues pointed by Fedor Hajdu.
It returns true for strings like $ (is currency), , or . (both are separators), + and -.
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Android - Set fragment id
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You can't set a fragment's ID programmatically.
There is however, a String tag that you can set inside the FragmentTransaction which can be used to uniquely identify a Fragment.
As Aleksey pointed out, you can pass an ID to FragmentTransaction's add(int, Fragment) method. However, this does ...
What is the most efficient way to store a list in the Django models?
...key relationship to a Friends table? I understand that myFriends are just strings but I would think that a better design would be to create a Friend model and have MyClass contain a foreign key realtionship to the resulting table.
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How to append output to the end of a text file
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The problem is that echo removes the newlines from the string. How do you append to a file a string which contains newlines?
– Timothy Swan
Dec 15 '17 at 21:25
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