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Does Java support default parameter values?
...berson: Static factory methods are no more harmful than new. They are used all the time in new code. Builders for simple value objects are often the result of over-engineering.
– Lii
Jan 22 '16 at 8:38
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How to set Java environment path in Ubuntu
I just installed JDK in Ubuntu with sudo apt-get install openjdk-6-jdk command,
after the installation where's the Java bin directory located? And how can I set the environment path for that directory? I have little experience with Ubuntu, can anyone give some advice or suggest any good website ...
How to convert a string to lower case in Bash?
...ous ways:
POSIX standard
tr
$ echo "$a" | tr '[:upper:]' '[:lower:]'
hi all
AWK
$ echo "$a" | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# t...
Regular expression to match non-ASCII characters?
...asiest way to match non-ASCII characters in a regex? I would like to match all words individually in an input string, but the language may not be English, so I will need to match things like ü, ö, ß, and ñ. Also, this is in Javascript/jQuery, so any solution will need to apply to that.
...
Gzip versus minify
...Apr 30 '09 at 14:20
Paul KuykendallPaul Kuykendall
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...
SQL Query to concatenate column values from multiple rows in Oracle
...ted string exceeds 4000 characters( limit for VARCHAR2 in SQL ), the below error is thrown, which is difficult to manage in Oracle versions upto 12.1
ORA-01489: result of string concatenation is too long
A new feature added in 12cR2 is the ON OVERFLOW clause of LISTAGG.
The query including t...
Set Viewbag before Redirect
...ade). So I had to had the test if(TempData["Message"] != null) to avoid an error.
– Patrick
Aug 19 '16 at 9:33
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How to make System.out.println() shorter
...stance will provide methods for different messages like info(), warn() and error().
Homemade methods
or simply make a println method of your own and call it:
void println(Object line) {
System.out.println(line);
}
println("Hello World");
IDE keyboard shortcuts
IntelliJ IDEA and NetBeans:
you t...
Assign output of a program to a variable using a MS batch file
...eric return code, you can do the following
application arg0 arg1
set VAR=%errorlevel%
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How to get first record in each group using Linq
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So glad i found this. I got error message "The method 'First' can only be used as a final query operation. Consider using the method 'FirstOrDefault' in this instance instead." from your example. Only operation on the list i did after the query was pass...