Libraries 3 : Mod function

Here's the replica of the widely used Mod Function (%). You may even use it in your program as :

// Rest part of the program is omitted
int m=39,n=7,result;
result=mod.cal(m,n);
System.out.print(result);

Java Program :

class mod
{
 static int cal(int number,int mod)
 {
     for(;;)
     {
         if(number>=mod)
         number=number-mod;
         else
         return number;
        }
    }
}