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Cannot refer to a non-final variable inside an inner class defined in a different method
...need to change the values of several variables as they run several times thorugh a timer. I need to keep updating the values with every iteration through the timer. I cannot set the values to final as that will prevent me from updating the values however I am getting the error I describe in the init...
How to get the current date and time
...guments; this will assign the current date and time to the new object.
import java.util.Date;
Date d = new Date();
In the words of the Javadocs for the zero-argument constructor:
Allocates a Date object and initializes it so that it represents the time at which it was allocated, measured to ...
Android - Writing a custom (compound) component
...So I think you can imagine that this Activity has like 20 fields (a field for almost every component). Also it contains a lot of logic (click listeners, logic to fill lists, etc).
...
What should every JavaScript programmer know? [closed]
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Not jQuery. Not YUI. Not (etc. etc.)
Frameworks may be useful, but they are often hiding the sometimes-ugly details of how JavaScript and the DOM actually work from you. If your aim is to be able to say “I know JavaScript”, then investing a lot of time in a framew...
How to close current tab in a browser window?
...
Note: the current tab is implied. This is equivalent:
window.close();
or you can specify a different window.
So:
function close_window() {
if (confirm("Close Window?")) {
close();
}
}
with HTML:
<a href="javascript:close_window();">close</a>
or:
<a href="#" onclic...
How to print the contents of RDD?
... view the content of a RDD, one way is to use collect():
myRDD.collect().foreach(println)
That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out:
myRDD.take(n).foreach(println)
...
Print commit message of a given commit in git
...lumbing command to print the commit message of one given commit - nothing more, nothing less.
6 Answers
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Is it possible to delete an object's property in PHP?
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unset($a->new_property);
This works for array elements, variables, and object attributes.
Example:
$a = new stdClass();
$a->new_property = 'foo';
var_export($a); // -> stdClass::__set_state(array('new_property' => 'foo'))
unset($a->new_pro...
Is there a (repeat-last-command) in Emacs?
Frequently, I've dug into apropos and docs looking for something like the following only to give up to get back to the task at hand:
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How do I check (at runtime) if one class is a subclass of another?
... edited Oct 8 '18 at 18:32
Trevor Boyd Smith
14.6k2323 gold badges9999 silver badges150150 bronze badges
answered Feb 6 '11 at 11:31
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