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Python - Passing a function into another function
...lving I will have to use a special set of rules. How can I pass a function into another function in Python?
5 Answers
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What is the fastest way to compare two sets in Java?
...me as the solution here except for the additional null checks. Java-11 Set Interface
– Chaithu Narayana
Jun 10 at 10:44
...
How to design a database for User Defined Fields?
...rocessed for aggregations or other transformations. Splitting the data out into multiple tables lets you perform some of the aggregating and other statistical analysis on the UDF data, then join that result to the master table via foreign key to get the non-aggregated attributes.
You can use table/c...
Java - get the current class name?
...tClass().getEnclosingClass();
if (enclosingClass != null) {
System.out.println(enclosingClass.getName());
} else {
System.out.println(getClass().getName());
}
You can move that in some static utility method.
But note that this is not the current class name. The anonymous class is different cl...
MySQL Insert into multiple tables? (Database normalization?)
...
No, you can't insert into multiple tables in one MySQL command. You can however use transactions.
BEGIN;
INSERT INTO users (username, password)
VALUES('test', 'test');
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'He...
What's so bad about Template Haskell?
...resenting Haskell ASTs. I imagine that copying the TH ADTs, and writing a converter to the internal AST representation would get you a good deal of the way there. This would be equivalent to the (not insignificant) effort of creating haskell-src-meta. It could also be simply re-implemented by pre...
How can we generate getters and setters in Visual Studio?
...uto-implemented properties (this is merely syntactic sugar).
And
private int productID;
public int ProductID
{
get { return productID; }
set { productID = value; }
}
becomes
public int ProductID { get; set; }
...
reading from app.config file
...ttings instead (you will need to add a reference to System.Configuration)
int value = Int32.Parse(ConfigurationManager.AppSettings["StartingMonthColumn"]);
If you still have problems reading in your app settings then check that your app.config file is named correctly. Specifically, it should be n...
Close virtual keyboard on button press
...w.OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
// hide virtual keyboard
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVI...
Check if list contains any of another list
...n larger collections would be to project parameters to source and then use Intersect which internally uses a HashSet<T> so instead of O(n^2) for the first approach (the equivalent of two nested loops) you can do the check in O(n) :
bool hasMatch = parameters.Select(x => x.source)
...