C++ Language 

It converts the weight to ounce.

#include<stdio.h>

main( )
{
   int pounds;

   /* Read first weight in pounds  */

   printf("\n\n\tWeight in pounds?");
   scant("%d",&pounds);

   /* Loop until user signals halt with negatie integer.  */

   while(pounds>=0)
   {
   printf("\n\n\tEquivalent weight in ounces: %d", pounds * 16);
   printf("\n\n\tWeight in pounds?");
   printf("\n\n\tEnter a negative integer to quit.");
   scanf("%d",&pounds);
   }
}