how to convert the value of int to a hexadecimal value and assign it to a variable?

how to convert the value of int to a hexadecimal value and assign it to a
variable?

References

Reference NO 1

http://stackoverflow.com/questions/15199370/how-to-convert-the-value-of-int-to-a-hexadecimal-value-and-assign-it-to-a-variab

Reference NO 2

http://stackoverflow.com/questions/8739577/converting-string-value-to-hex-decimal

Reference NO 3

https://forums.oracle.com/thread/2420171

Reference NO 4

http://php.net/manual/en/language.types.integer.php

Reference NO 5

http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/topic/com.ibm.xlcpp8a.doc/proguide/ref/long.htm

Reference NO 6

http://wwwacs.gantep.edu.tr/docs/perl-ebook/ch3.htm

Reference NO 7

http://www.linuxtopia.org/online_books/programming_books/thinking_in_java/TIJ305_013.htm

Reference NO 8

http://arduino.cc/en/Reference/IntegerConstants