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Mapping many-to-many association table with extra column(s)
...ntity, and decompose the many to many association between User and Service into two OneToMany associations : One User has many UserServices, and one Service has many UserServices.
You haven't shown us the most important part : the mapping and initialization of the relationships between your entitie...
Find out if ListView is scrolled to the bottom?
...hen you should be able to handle things correctly.
For example:
private int preLast;
// Initialization stuff.
yourListView.setOnScrollListener(this);
// ... ... ...
@Override
public void onScroll(AbsListView lw, final int firstVisibleItem,
final int visibleItemCount, final int totalItem...
What is the apply function in Scala?
...Every function also has an OO type: for instance, a function that takes an Int parameter and returns an Int will have OO type of Function1[Int,Int].
// define a function in scala
(x:Int) => x + 1
// assign an object representing the function to a variable
val f = (x:Int) => x + 1
Since...
Difference between UTF-8 and UTF-16?
...
The fastest way to convert String to byte array is something like that, posted down as sample
– bestsss
Jan 11 '11 at 19:27
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How to extract numbers from a string in Python?
...
If you only want to extract only positive integers, try the following:
>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]
I would argue that this is better than the regex example because you ...
Why does C++ require a user-provided default constructor to default-construct a const object?
...
But this still forbids struct A { int n; A() = default; }; const A a; while allowing struct B { int n; B() {} }; const B b; because the new wording still says "user-provided" not "user-declared" and I'm left scratching my head why the committee chose to exclu...
How can I format a nullable DateTime with ToString()?
How can I convert the nullable DateTime dt2 to a formatted string?
20 Answers
20
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Keystore type: which one to use?
... from a browser or coming from OpenSSL-based tools (keytool wasn't able to convert a keystore and import its private keys before Java 6, so you had to use other tools).
If you already have a PKCS#12 file, it's often easier to use the PKCS12 type directly. It's possible to convert formats, but it's ...
Why can't I have “public static const string S = ”stuff"; in my Class?
... value semantics, which means references to the constant might be compiled into the using code as the value of the constant member, instead of a reference to the member.
In other words, a const member containing the value 10, might get compiled into code that uses it as the number 10, instead of a ...
Why are Where and Select outperforming just Select?
... with p(valid) as a variable. The actual values of the costs determine the intersection point of the two lines, and since cost(yield) can be different from cost(+), they don't necessarily intersect at p(valid)=0.5.
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