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How can I initialize an ArrayList with all zeroes in Java?
...r> list = new ArrayList<Integer>(Collections.nCopies(60, 0));
If you want to create a list with 60 different objects, you could use the Stream API with a Supplier as follows:
List<Person> persons = Stream.generate(Person::new)
.limit(60)
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Using {} in a case statement. Why?
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Actually IMO you will get a compiler error even if you skip the second declaration of variable x.
– Abhishek Bansal
Nov 17 '13 at 13:30
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split string in to 2 based on last occurrence of a separator
I would like to know if there is any built in function in python to break the string in to 2 parts, based on the last occurrence of a separator.
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What does the KEY keyword mean?
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Exactly! MySql manual clarifies that INDEX and KEY are synonyms - this is why I upvoted the answer. But it can be concluded from the answer that BNF Notation {|} described synonyms always, not only in this case.
– sergtk
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How to cast an Object to an int
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If you're sure that this object is an Integer :
int i = (Integer) object;
Or, starting from Java 7, you can equivalently write:
int i = (int) object;
Beware, it can throw a ClassCastException if your object isn't an Int...
Easy way to convert Iterable to Collection
...r similar methods. This will of course copy all the elements in to memory. If that isn't acceptable, I think your code that works with these ought to take Iterable rather than Collection. Guava also happens to provide convenient methods for doing things you can do on a Collection using an Iterable (...
jQuery Event Keypress: Which key was pressed?
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Actually this is better:
var code = e.keyCode || e.which;
if(code == 13) { //Enter keycode
//Do something
}
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AsyncTask and error handling on Android
...s in the main UI thread. What's unclear to me is how to handle exceptions if something goes haywire in AsyncTask#doInBackground .
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JavaScript object: access variable property by name as string [duplicate]
If I have a javascript object that looks like below
3 Answers
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Border length smaller than div width?
...p for presentational purpose. :after is also supported from IE8.
edit:
if you need a right-aligned border, just change left: 0 with right: 0
if you need a center-aligned border just simply set left: 50px;
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