Domanda di colloquio di Manhattan Associates

Written Questions: 1) Program to Convert String to Integer without using Integer Parseint. 2) Program to read the data from file and remove ' ' and \n and duplicates from the string. 3) Program to print Manhattan (if no. is multiple of 3) print Associates(if no. is multiple of 5) and Manhattan Associates (if no is multiple of both 3 and 5) 4) 3 questions related to inner joins.