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How to add items to a spinner in Android?
...reate(savedInstanceState);
setContentView(R.layout.main);
String[] arraySpinner = new String[] {
"1", "2", "3", "4", "5", "6", "7"
};
Spinner s = (Spinner) findViewById(R.id.Spinner01);
ArrayAdapter<String> adapter = new ArrayAdapter<Stri...
When is -XAllowAmbiguousTypes appropriate?
...stances, OverlappingInstances #-}
class Foo a where
whichOne :: a -> String
instance Foo a where
whichOne _ = "a"
instance Foo [a] where
whichOne _ = "[a]"
-- |
-- >>> main
-- [a]
main :: IO ()
main = putStrLn $ whichOne (undefined :: [Int])
But GHC is not okay with overlappi...
Specifying an Index (Non-Unique Key) Using JPA
...lass Region{
@Column(name = "iso_code", nullable = false)
private String isoCode;
@Column(name = "name", nullable = false)
private String name;
}
Update: If you ever need to create and index with two or more columns you may use commas. For example:
@Entity
@Table(name = "co...
Send inline image in email
...
Try this
string htmlBody = "<html><body><h1>Picture</h1><br><img src=\"cid:filename\"></body></html>";
AlternateView avHtml = AlternateView.CreateAlternateViewFromString
(htmlBody, ...
Better way to cast object to int
...t conversion defined.
int.Parse()/int.TryParse() — For converting from a string of unknown format.
int.ParseExact()/int.TryParseExact() — For converting from a string in a specific format
Convert.ToInt32() — For converting an object of unknown type. It will use an explicit and implicit conve...
warning this call is not awaited, execution of the current method continues
...u need the result, you can change the GetNameAsync to return, say, Task<string>:
public static async Task<string> GetNameAsync()
{
string firstname = await PromptForStringAsync("Enter your first name: ");
string lastname = await PromptForStringAsync("Enter your last name: ");
...
Java URL encoding of query string parameters
...y to go. You only need to keep in mind to encode only the individual query string parameter name and/or value, not the entire URL, for sure not the query string parameter separator character & nor the parameter name-value separator character =.
String q = "random word £500 bank $";
String url =...
How to include JavaScript file or library in Chrome console?
...message: VM1929:11 Uncaught (in promise) EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' blob: filesystem: chrome-extension-resource:".
– Vassi...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
... it. Those who guessed FFT were right.
The problem: we are given a binary string S of length n, and we want to find three evenly spaced 1s in it. For example, S may be 110110010, where n=9. It has evenly spaced 1s at positions 2, 5, and 8.
Scan S left to right, and make a list L of positions of 1...
Size-limited queue that holds last N elements in Java
... of these limited-size queues, like that: Map<Long, LimitedSizeQueue<String>>.
– GreyCat
Apr 15 '11 at 10:52
...