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What is boxing and unboxing and what are the trade offs?
...xing is the conversion of a reference type into a value type.
EX: int i = 123;
object o = i;// Boxing
int j = (int)o;// UnBoxing
Value Types are: int, char and structures, enumerations.
Reference Types are:
Classes,interfaces,arrays,strings and objects
...
Password hint font in Android
...ord.setTypeface(cache);
Testing
Some device face font problem
Xiaomi A2 (8.0.1)
Pixel XL (8.1.0)
Sony Xperia Z5 Au (SOV32) (6.0)
Arrow NX (F-04G) (6.0.1)
Kyocera (S2) (7.0)
Some device not face font problem
Samsung S4 (SC-04E) (5.0.1)
Samsung Galaxy Node 5 (5.1.1)
Samsung S7 Edge (SM-G935F...
Consequences of using graft in Mercurial
... account.
Q2: Is this merge just a normal 3-way merge using D, J' and M1?
A2: Yes, grafting does not alter the topology of the graph.
Q3: Has mercurial stored/used extra information about the graft operation to help it with the merge?
A3: No.
Q4: What are the potential problems with a flow like th...
How do I compare version numbers in Python?
...3.a4"), version.Version)
True
>>> isinstance(version.parse("1.3.xy123"), version.LegacyVersion)
True
>>> version.Version("1.3.xy123")
Traceback (most recent call last):
...
packaging.version.InvalidVersion: Invalid version: '1.3.xy123'
packaging.version.parse is a third-party uti...
CSS \9 in width property
... \0 instead of \9 will apply it to IE10 as well
– abc123
Oct 9 '13 at 21:26
21
@abc123 lets hope ...
Regex Named Groups in Java
...atching Strings with Balanced Parentheses slide)
Example:
String:
"TEST 123"
RegExp:
"(?<login>\\w+) (?<id>\\d+)"
Access
matcher.group(1) ==> TEST
matcher.group("login") ==> TEST
matcher.name(1) ==> login
Replace
matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaa...
What does the explicit keyword mean?
...class type.
For example, the following statements are legal:
A a1;
A a2 = A(1);
A a3(1);
A a4 = A("Venditti");
A* p = new A(1);
A a5 = (A)1;
A a6 = static_cast<A>(1);
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How do I match any character across multiple lines in a regular expression?
...er (demo): "(?s)(.*)<Foobar>" (in Google Spreadsheets, =REGEXEXTRACT(A2,"(?s)(.*)<Foobar>"))
NOTES ON (?s):
In most non-POSIX engines, (?s) inline modifier (or embedded flag option) can be used to enforce . to match line breaks.
If placed at the start of the pattern, (?s) changes the...
What should be in my .gitignore for an Android Studio project?
...ited Nov 28 '15 at 21:12
hichris123
9,5151212 gold badges5050 silver badges6666 bronze badges
answered Jan 10 '14 at 16:23
...
Generic TryParse
... it's simply a matter of calling thusly:
var value = TryParse<int>("123", int.TryParse);
var value2 = TryParse<decimal>("123.123", decimal.TryParse);
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