removing duplicates from string array - using HashSet

Question

Im trying to convert a string array with duplicates to string array without duplicates by using hashSet like below.

String[] d = new HashSet<String>(Arrays.asList(duplicateList)).toArray(new String[0]);


duplicateList = AD,AD,AD,AD,AD,AD,AD,AD,AD,AD,CP,RR,RR,RR,RR,RR,RR,,,,,,,,,,,

When I print d its still the same. Am i missing something?

Note: I do not want to loop through and use contains or equals.

How are you printing the output array? It would help to show a complete working code. — M A
– M A, Commented Nov 12, 2014 at 19:06
Works for me. Quick question - is your duplicateList an array of those 2-letter strings? Or is it a large string that contains a comma-separated list? — Ordous
– Ordous, Commented Nov 12, 2014 at 19:13
@JNPW No surpize it won't work. You have to get an array first, using split as in the asnwer below, for instance — kiruwka
– kiruwka, Commented Nov 12, 2014 at 19:15

peter.petrov · Accepted Answer · 2014-11-12 19:06:33Z

2

Try something like this. That should be it.

d.addAll(Arrays.asList(duplicateList.split(",")));

answered Nov 12, 2014 at 19:06

peter.petrov

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