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Where is Java's Array indexOf?
...om/javase/6/docs/api/java/util/… asList transforms the list of arguments into a list not the argument itself.
– Alexandru
Jun 28 '11 at 12:13
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How to add a primary key to a MySQL table?
...PRIMARY KEY, not just the word PRIMARY:
alter table goods add column `id` int(10) unsigned primary KEY AUTO_INCREMENT;
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Subtract days from a date in JavaScript
...ime. So will correctly subtract 7 days time from the Date object. When you convert it to a string in your specified time zone it will correctly show the time for that zone.
– awjr
Oct 2 '15 at 14:40
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How to check if a word is an English word with Python?
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The same mention applies here too: a lot faster when converted to a set: set(words.words())
– Iulius Curt
Sep 30 '14 at 19:41
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Placing/Overlapping(z-index) a view above another view in android
...g setChildrenDrawingOrderEnabled(true) and overriding getChildDrawingOrder(int childCount, int i).
Example:
/**
* Example Layout that changes draw order of a FrameLayout
*/
public class OrderLayout extends FrameLayout {
private static final int[][] DRAW_ORDERS = new int[][]{
{0,...
Is SQL or even TSQL Turing Complete?
...that can refer to themselves, and thereby recursively solve problems.
The interesting thing to note is that CTE was not really added to turn SQL into a programming language -- just to turn a declarative querying language into a more powerful declarative querying language. Sort of like in C++, whose...
How to get the index of an item in a list in a single step?
...
How about the List.FindIndex Method:
int index = myList.FindIndex(a => a.Prop == oProp);
This method performs a linear search; therefore, this method is an
O(n) operation, where n is Count.
If the item is not found, it will return -1
...
How to pass objects to functions in C++?
...les to determine whether to pass by const reference or not.)
Passing by pointer is virtually never advised. Optional parameters are best expressed as a std::optional (boost::optional for older std libs), and aliasing is done fine by reference.
C++11's move semantics make passing and returning by va...
What is the difference between a static and a non-static initialization code block
... after the invocation of the super constructor.
If you remove static from int a, it becomes an instance variable, which you are not able to access from the static initializer block. This will fail to compile with the error "non-static variable a cannot be referenced from a static context".
If you ...
Get query from java.sql.PreparedStatement [duplicate]
...plete SQL by just calling PreparedStatement#toString(). I.e.
System.out.println(preparedStatement);
To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is using a statement wrapper which...