C++ questions. puzzles

Three books red, blue, mixed puzzle.

1. online test : -> general intelligence 40 questions in 20 mins -> aptitude 20 questions in 30 mins 2. written test : core java and jsp (basics) with 3 programming i:e -> find the 2nd largest number in array. ex : [2,4,6,1,4,9,8] , ans : 8 -> find sum of numbers in a given string. ex: "abc 3 er 34 o 9" , ans: 46 -> similar to this one : http://javaconceptoftheday.com/check-one-string-is-rotation-of-another/ 3. technical test exceptions,string buffer and builder, oops in real time example in the project, custom exception, synchronisation, collections like set, hash table, compile time and run time exception.