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Why can't enum's constructor access static fields?
...at would fail:
enum Color {
RED, GREEN, BLUE;
static final Map<String,Color> colorMap = new HashMap<String,Color>();
Color() {
colorMap.put(toString(), this);
}
}
Static initialization of this enum type would throw a NullPointerException because the static ...
Do regular expressions from the re module support word boundaries (\b)?
...bject at 0x100418850>
Also forgot to mention, you should be using raw strings in your code
>>> x = 'one two three'
>>> y = re.search(r"\btwo\b", x)
>>> y
<_sre.SRE_Match object at 0x100418a58>
>>>
...
PUT vs. POST in REST
...
@Schneider, in this case your server is making an extra effort to guarantee idempotence, but it is not advertising it. Browsers will still warn the user if they try to reload such a POST request.
– Tobu
Jan 6 '12 at 10:53
...
Is there a JSON equivalent of XQuery/XPath?
...orting, mapping, range
selection, and flexible expressions with wildcard string comparisons
and various operators.
JSONselect has another point of view on the question (CSS selector-like, rather than XPath) and has a JavaScript implementation.
...
How can I create a copy of an object in Python?
...ame object:
>>> tuple_copy_attempt is a_tuple
True
Similarly for strings:
>>> s = 'abc'
>>> s0 = s[:]
>>> s == s0
True
>>> s is s0
True
and for frozensets, even though they have a copy method:
>>> a_frozenset = frozenset('abc')
>>> fro...
How to hash a string into 8 digits?
Is there anyway that I can hash a random string into a 8 digit number without implementing any algorithms myself?
4 Answers...
How to get datetime in JavaScript?
...emantically, you're probably looking for the one-liner
new Date().toLocaleString()
which formats the date in the locale of the user.
If you're really looking for a specific way to format dates, I recommend the moment.js library.
...
Oracle query to fetch column names
...ific user. in your case, I'd imagine the query would look something like:
String sqlStr= "
SELECT column_name
FROM all_tab_cols
WHERE table_name = 'USERS'
AND owner = '" +_db+ "'
AND column_name NOT IN ( 'PASSWORD', 'VERSION', 'ID' )"
Note that with this approach, you risk SQL injection....
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
...ns and change the app flow:
public static boolean isSamsung_4_2_2() {
String deviceMan = Build.MANUFACTURER;
String deviceRel = Build.VERSION.RELEASE;
return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2");
}
Then in the activity's onCreate method:
if (...
Android Spinner : Avoid onItemSelected calls during initialization
...{
TextView textView = (TextView) findViewById(R.id.textView1);
String str = (String) parent.getItemAtPosition(pos);
textView.setText(str);
}
}
You can do it with boolean value and also by checking current and previous positions. See here
...