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Why do objects of the same class have access to each other's private data?
...t compile time. Only per-class control can be implemented that way.
Some hints of per-object control are present in protected access specification, which is why it even has its own dedicated chapter in the standard (11.5). But still any per-object features described there are rather rudimentary. Ag...
What are static factory methods?
...d providing direct access to database connections because they're resource intensive. So we use a static factory method getDbConnection that creates a connection if we're below the limit. Otherwise, it tries to provide a "spare" connection, failing with an exception if there are none.
public class...
SELECT DISTINCT on one column
...ow has all shown), this is the correct query:
declare @TestData table (ID int, sku char(6), product varchar(15))
insert into @TestData values (1 , 'FOO-23' ,'Orange')
insert into @TestData values (2 , 'BAR-23' ,'Orange')
insert into @TestData values (3 , 'FOO-24' ,'Apple')
insert ...
Stateless and Stateful Enterprise Java Beans
...ually should show that user1 has 1 and user2 has 1 ( if thats what you are intending to do. Shopping cart example as above).
– Krishna
Aug 19 '13 at 16:48
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Maintain model of scope when changing between views in AngularJS
...ave a model. the model ONLY has data - no functions -. That way it can be converted back and forth from JSON to persist it. I used the html5 localstorage for persistence.
Lastly i used window.onbeforeunload and $rootScope.$broadcast('saveState'); to let all the services know that they should save...
Calling startActivity() from outside of an Activity?
I'm using an AlarmManager to trigger an intent that broadcasts a signal. The following is my code:
9 Answers
...
\d is less efficient than [0-9]
...ilder();
for(UInt16 i = 0; i < UInt16.MaxValue; i++)
{
string str = Convert.ToChar(i).ToString();
if (Regex.IsMatch(str, @"\d"))
sb.Append(str);
}
Console.WriteLine(sb.ToString());
Which generates:
0123456789٠١٢٣٤٥٦٧٨٩۰۱۲۳۴۵۶۷۸۹߀߁߂߃߄߅߆߇߈߉०१...
Difference between res.send and res.json in Express.js
... are identical when an object or array is passed, but res.json() will also convert non-objects, such as null and undefined, which are not valid JSON.
The method also uses the json replacer and json spaces application settings, so you can format JSON with more options. Those options are set like so:...
How to implement a Map with multiple keys? [duplicate]
... One Map<K1, V> and one Map<K2, V>. If you must have a single interface, write a wrapper class that implements said methods.
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Fragment Inside Fragment
...MainActivity extends AppCompatActivity implements ParentFragment.OnFragmentInteractionListener, ChildFragment.OnFragmentInteractionListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_m...