JAVA REVERSE POLISH NOTATION

**QQ=**http://www.codechef.com/problems/ONP/
**MY SOLUTION=**http://www.codechef.com/viewsolution/4519846
**TYPE OF ERROR=**WRONG ANSWER
IN MY integrated BLUEJ ENVIRONMENT OUTPUT IS COMINg IN NUMBERS for the given test cases
PLZ explain my mistake

first: you dont have to print anything like “enter number” etc

second:i think your algorithm is wrong

hint:try to solve it using stack

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