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Recursively list files in Java
...st all files under a directory in Java? Does the framework provide any utility?
26 Answers
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Finish all previous activities
...ent(getApplicationContext(), Home.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
This will clear all the activities on top of home.
Assuming you are finishing the login screen when the user logs in and home is created and afterwards all the screens from 1 to 5 on...
Evaluating string “3*(4+2)” yield int 18 [duplicate]
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Yes, you can let C# compiler evaluate it at runtime.
See: CSharpCorner
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How to validate an email address in PHP
...r_var($email, FILTER_VALIDATE_EMAIL)) {
// invalid emailaddress
}
Additionally you can check whether the domain defines an MX record:
if (!checkdnsrr($domain, 'MX')) {
// domain is not valid
}
But this still doesn't guarantee that the mail exists. The only way to find that out is by sen...
How to find out where a function is defined?
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You could also do this in PHP itself:
$reflFunc = new ReflectionFunction('function_name');
print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine();
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Difference between a virtual function and a pure virtual function [duplicate]
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A virtual function makes its class a polymorphic base class. Derived classes can override virtual functions. Virtual functions called through base class pointers/references will be resolved at run-time. That is, the dynamic type of the object is used...
Django MEDIA_URL and MEDIA_ROOT
...m trying to upload an image via the Django admin and then view that image either in a page on the frontend or just via a URL.
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Array initialization syntax when not in a declaration
I can write:
4 Answers
4
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Using Application context everywhere?
In an Android app, is there anything wrong with the following approach:
9 Answers
9
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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:
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