Question: Convert a int into a String containing ASCII characters ( in hex ) . * * You do not need to handle negative numbers. *

Convert a int into a String containing ASCII characters (in hex).
*
* You do not need to handle negative numbers.
* The String returned should contain the minimum number of characters
* necessary to represent the number that was passed in.
*
* Example: intToHexString(30); //=>"1E"
*/
public static String intToHexString(int hex){

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