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Thread: Count Singletons in a String

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    Default Count Singletons in a String

    For a problem, I have to write a code that counts the number of singletons, stored in the variable n, in a string sequence. A singleton is a word in a sequence that does not appear before or after itself in the sequence.

    I initialized the count variable n with 2, since the first and last tokens can only have one
    copy before and after each other respectively. I divided the string sequence into tokens by splitting it with respect to the empty spaces between them.

    Here is my code.

    String string = " ";
    string = stdin.next();
     
    String[] tokens = string.split(" ");
     
    n = 2;
     
    for (int i = 1; i < tokens.length()-1; i++){
    	while (!(tokens[i].equals("xxxxx"))){ 
    		if (!(tokens[i].equals(tokens[i-1]) && !(tokens[i].equals(tokens[i+1])))
    			n++;
    	}
    }


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    Default Re: Count Singletons in a String

    Do you have a question?

    Also posted at: http://forums.devshed.com/java-help-...ng-960893.html
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Count Singletons in a String

    Quote Originally Posted by Norm View Post
    Do you have a question?

    Also posted at: Singletons in a string
    Yes, I know, I posted the same question on two different forums. I hope that this is not against the rules of the forums.

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    Default Re: Count Singletons in a String

    Did you have any specific questions?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Count Singletons in a String

    What's your definition of 'singleton?' That term has a specific meaning in programming, and I don't think that's what you mean.

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    Default Re: Count Singletons in a String

    Quote Originally Posted by GregBrannon View Post
    What's your definition of 'singleton?' That term has a specific meaning in programming, and I don't think that's what you mean.
    Well, the problem specification states that: "A singleton is a word in a sequence that does not appear before or after itself in the sequence."

    --- Update ---

    Quote Originally Posted by Norm View Post
    Did you have any specific questions?
    Yes, I would like to know if someone can help me figure out why my code is not working. It is suppose to find singletons in a string, and count the number of time the singletons appear.

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    Default Re: Count Singletons in a String

    See the other site where this is posted.
    If you don't understand my answer, don't ignore it, ask a question.

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