Interview Solution

As soon as we started programming, we found to our surprise that it wasn’t as easy to get programs right as we had thought. Debugging had to be discovered. I can remember the exact instant when I realized that a large part of my life from then on was going to be spent in finding mistakes in my own programs. Maurice Wilkes

Remove Duplicate

Language Java | Level Intermediate | Category Interview Problems | July 24, 2015 4:52 pm

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Interview Problem

Remove duplicate in given string.
Write program to remove duplicate characters using hash map
Example:-
Given string "hello" return "helo"


Output

   					 
Before remove duplicate:hello
after remove duplicate:helo

				    

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