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Regular Expressions: Is there an AND operator?
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396
Use a non-consuming regular expression.
The typical (i.e. Perl/Java) notation is:
(?=expr)
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Java generics - why is “extends T” allowed but not “implements T”?
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332
There is no semantic difference in the generic constraint language between whether a class 'im...
How to set commands output as a variable in a batch file
...var!count!=%%F
SET /a count=!count!+1
)
ECHO %var1%
ECHO %var2%
ECHO %var3%
ENDLOCAL
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Difference between a Structure and a Union
.../ can use both a and b simultaneously
char b;
} bar;
union foo x;
x.a = 3; // OK
x.b = 'c'; // NO! this affects the value of x.a!
struct bar y;
y.a = 3; // OK
y.b = 'c'; // OK
edit: If you're wondering what setting x.b to 'c' changes the value of x.a to, technically speaking it's undefined. On...
MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...L.
– ypercubeᵀᴹ
May 26 '11 at 9:33
@ypercube, done for the bottom query, I think that for the top query it will al...
Formatting a float to 2 decimal places
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edited May 9 '17 at 7:33
Michael
3,49044 gold badges2626 silver badges4141 bronze badges
answered Ju...
Entity Framework and Connection Pooling
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371
Connection pooling is handled as in any other ADO.NET application. Entity connection still us...
How to set specific java version to Maven
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answered Oct 29 '13 at 9:47
DanielBarbarianDanielBarbarian
3,9571212 gold badges2929 silver badges3838 bronze badges
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Android - Emulator in landscape mode, screen does not rotate
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It is a bug with the 2.3 and 4.4 emulators.
http://code.google.com/p/android/issues/detail?id=13189 [v2.3]
https://code.google.com/p/android/issues/detail?id=61671 [v4.4]
s...
Correct idiom for managing multiple chained resources in try-with-resources block?
...t finally blocks so even a failed flush doesn't prevent resource release.
3)
try (FileWriter fw = new FileWriter(file)) {
BufferedWriter bw = new BufferedWriter(fw);
bw.write(text);
}
There's a bug here. Should be:
try (FileWriter fw = new FileWriter(file)) {
BufferedWriter bw = new...