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What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
I usually end up trying every combination until it compiles. Can somebody explain what I should use where?
3 Answers
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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
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Please check my answer here. Basically I just had to :
@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing t...
How to interpret API documentation function parameters?
...a way as to confuse perennial newbs / hackers / DIYers like myself?
It's really not meant to be written that way. I'll agree there seems to be no ease of use across API documentations. However, there is a lot of cross over from older man style syntax conventions, to the modern API/namespace conventi...
Ignore mouse interaction on overlay image
...rounds set that are being used as containers for other items (that you actually do want to hit-test.)
– Armentage
Feb 8 '12 at 5:22
4
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How to split a string with any whitespace chars as delimiters
....lang.String.split() to split a String into an Array of substrings using all whitespace characters ( ' ' , '\t' , '\n' , etc.) as delimiters?
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Regex: matching up to the first occurrence of a character
...a semicolon. The square brackets are a set matching operator, it's essentially, match any character in this set of characters, the ^ at the start makes it an inverse match, so match anything not in this set.
share
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Get the generated SQL statement from a SqlCommand object?
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Nice job actually trying to tackle the problem here, up-voted for effort alone.
– Adam Tolley
Apr 5 '11 at 15:36
3
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How to make a great R reproducible example
...le examples, see the help files of the function you are using. In general, all the code given there fulfills the requirements of a minimal reproducible example: data is provided, minimal code is provided, and everything is runnable. Also look at questions on Stack Overflow with lots of upvotes.
Pro...
How to convert an int to a hex string?
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@diedthreetimes, chr does not involve ASCII at all--it simply takes a number and makes a one-byte bytestring where the ordinal value of the byte is the number. ASCII and ASCII-compatible encodings come into play when you write and display bytestrings.
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How to override to_json in Rails?
...ould be separate from the rendering of the json.
Now, anytime to_json is called on an object, as_json is invoked to create the data structure, and then that hash is encoded as a JSON string using ActiveSupport::json.encode. This happens for all types: object, numeric, date, string, etc (see the Act...