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  4. Java Regex 2 - Duplicate Words
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Java Regex 2 - Duplicate Words

  • christopher27
     + 18 comments

    Hi,

    Try this code .It passed all the test cases: 
            String pattern = "\\b(\\w+)(\\b\\W+\\b\\1\\b)*";
 Pattern r = Pattern.compile(pattern,Pattern.MULTILINE+Pattern.CASE_INSENSITIVE);

        Scanner in = new Scanner(System.in);
        int testCases = Integer.parseInt(in.nextLine());
        while(testCases>0){
            String input = in.nextLine();
            Matcher m = r.matcher(input);
            boolean findMatch = true;
            while(m.find( )){
          input =input.replaceAll(m.group(),m.group(1));
                findMatch = false;
            }
            System.out.println(input);
            testCases--;
        }