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Why does the C preprocessor interpret the word “linux” as the constant “1”?
...or differences between systems. These macro definitions were generally set by the compiler itself, not defined in a library header file. Since there were no real rules about which identifiers could be used by the implementation and which were reserved for programmers, compiler writers felt free to u...
Why would you use Oracle database? [closed]
...performance tuning tools, and finicky optimizer. Whatever savings you get by foregoing an MS Win Server license will immediately be eaten up by lost productivity.
– engil
May 13 '14 at 20:42
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How can I change the color of AlertDialog title and the color of the line under it
...sh. In my answer here, I detail how to adjust the color of a ListSeparator by just checking out the parent style used by Android, creating a new image, and creating a new style based on the original. Unfortunately, unlike with the ListSeparator's style, AlertDialog themes are internal, and therefore...
Difference between and
...red in the application context (no matter if they were defined with XML or by package scanning).
<context:component-scan> can also do what <context:annotation-config> does but <context:component-scan> also scans packages to find and register beans within the application context.
...
Postgres and Indexes on Foreign Keys and Primary Keys
..._catalog', 'pg_toast')
and pg_catalog.pg_table_is_visible(c.oid)
order by
n.nspname
,t.relname
,c.relname
If you want to delve further (such as columns and ordering), you need to look at pg_catalog.pg_index. Using psql -E [dbname] comes in handy for figuring out how to query the c...
Distinct by property of class with LINQ [duplicate]
... the first car from each group:
List<Car> distinct =
cars
.GroupBy(car => car.CarCode)
.Select(g => g.First())
.ToList();
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Eclipse: All my projects disappeared from Project Explorer
...ve about 200 separate project-plugins, it would be too long to do this one by one. So when selecting a root directory, choose the common folder to them all and the Import dialog will find all the projects under that dir. Saved me a lot of time and nerves ;o)
– Kuba
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What are the -Xms and -Xmx parameters when starting JVM?
...8m
The memory flag can also be specified in different sizes, such as kilobytes, megabytes, and so on.
-Xmx1024k
-Xmx512m
-Xmx8g
The Xms flag has no default value, and Xmx typically has a default value of 256 MB. A common use for these flags is when you encounter a java.lang.OutOfMemoryError.
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What does 'public static void' mean in Java?
...nswered Mar 5 '10 at 21:29
Mark ByersMark Byers
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
What is meant by String Pool ? And what is the difference between the following declarations:
5 Answers
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