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Is a Java string really immutable?
...hange the lookup table used in Integer autoboxing etc.
Now, the reason s1 and s2 change value, is that they both refer to the same interned string. The compiler does this (as mentioned by other answers).
The reason s3 does not was actually a bit surprising to me, as I thought it would share the v...
abort, terminate or exit?
What's the difference between those three, and how shall I end program in case of exception which I can't handle properly?
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Replace a newline in TSQL
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Actually a new line in a SQL command or script string can be any of CR, LF or CR+LF. To get them all, you need something like this:
SELECT REPLACE(REPLACE(@str, CHAR(13), ''), CHAR(10), '')
...
How to implement a custom AlertDialog View
In the Android docs on AlertDialog , it gives the following instruction and example for setting a custom view in an AlertDialog:
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Entity Framework - Invalid Column Name '*_ID"
I've narrowed this down to some issue between Code First and Database first EF, but I'm not sure how to fix it. I'll try to be as clear as I can, but I honestly am missing some of the understanding here myself. This is Entity Framework 4.4
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Checking user's homepage in Internet Explorer
...he same domain. For example, if www.microsoft.com is set as your homepage, and you call this method from a page on the Microsoft® Web site, then the isHomePage method returns true. However, if your homepage is set to www.microsoft.com and you call this method from a page on a different domain, the ...
Using GCC to produce readable assembly?
...source code with disassembly
-l, --line-numbers Include line numbers and filenames in output
objdump -drwC -Mintel is nice:
-r shows symbol names on relocations (so you'd see puts in the call instruction below)
-R shows dynamic-linking relocations / symbol names (useful on shared libraries...
Real differences between “java -server” and “java -client”?
Is there any real practical difference between "java -server" and "java -client"?
11 Answers
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String replacement in Objective-C
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I thought the point of having NSString and an NSMutableString subclass was because an instance of NSString is unchangeable. While--like any sane person, I'd rather have ducks than strings any day--the fact that you just overwrote the contents of str just blew my m...
PostgreSQL create table if not exists
...alog.pg_tables
WHERE schemaname = 'myschema'
AND tablename = 'mytable') THEN
RAISE NOTICE 'Table myschema.mytable already exists.';
ELSE
CREATE TABLE myschema.mytable (i integer);
END IF;
END
$func$;
Call:
SELECT create_mytable(); -- call a...