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find: missing argument to -exec
...choargs {} +
/tmp/foo - /tmp/foo/one - /tmp/foo/two
Your command has two errors:
First, you use {};, but the ; must be a parameter of its own.
Second, the command ends at the &&. You specified “run find, and if that was successful, remove the file named {};.“. If you want to use shel...
How do I install an R package from source?
...packages("/tmp/shiny_0.13.1.tar.gz", repos=NULL, type="source") i get this error: -ksh: syntax error: `(' unexpected
– iaav
Jul 11 '16 at 20:55
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throwing exceptions out of a destructor
...ptions they will manually call the appropriate functions and processes any errors. If the user of the object is not worried (as the object will be destroyed) then the destructor is left to take care of business.
An example:
std::fstream
The close() method can potentially throw an exception.
The dest...
Why is it bad style to `rescue Exception => e` in Ruby?
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TL;DR: Use StandardError instead for general exception catching. When the original exception is re-raised (e.g. when rescuing to log the exception only), rescuing Exception is probably okay.
Exception is the root of Ruby's exception hierarch...
How to get current time and date in C++?
...getchar(); // wait for keyboard input
}
Output:
currentDateTime()=2012-05-06.21:47:59
Please visit here for more information about date/time format
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
...exactly like the parameters of function foo. Otherwise it will throw a TypeError:
>>> mydict = {'x':1,'y':2,'z':3,'badnews':9}
>>> foo(**mydict)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: foo() got an unexpected keyword argument...
“where 1=1” statement [duplicate]
... example if the $_REQUEST['cond'] is not "age" the query will return mysql error because there are nothing after the where condition.
the query will be select * from some_table where and that is error
to fix this issue (at least in this insecure example) we use
<?php
//not that this is just ...
TypeError: Missing 1 required positional argument: 'self'
...on and have hit a wall. I followed several tutorials but cant get past the error:
6 Answers
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Why is Java's SimpleDateFormat not thread-safe? [duplicate]
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Here is the example which results in a strange error. Even Google gives no results:
public class ExampleClass {
private static final Pattern dateCreateP = Pattern.compile("Дата подачи:\\s*(.+)");
private static final SimpleDateFormat sdf = new SimpleDateFormat...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT), and the error will not show.
Add the following permission to your manifest:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
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