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Thread: Finding the count of a letter in a String?

  1. #1
    Junior Member vlkn448's Avatar
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    Question Finding the count of a letter in a String?

    Hi,
    I want to find the count of a specific letter by recursion.
    Can you help me?

    Thanks!


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    Default Re: Finding the count of a letter in a String?

    lets say you have a string name NAME and you wanted to count numbers of 'a' in it.
    You should try

    int count = 0; //to count the numbers of appearance of letter

    for(int i = 0; i < NAME.length(); i++) //NAME.length() is a command to count length of characters in a string.
    {
    if(NAME.charAt(i) == 'a')
    count++;
    }

    print(number of a in NAME is count)

    This should help you

  3. #3
    Junior Member vlkn448's Avatar
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    Default Re: Finding the count of a letter in a String?

    Quote Originally Posted by kindk12 View Post
    lets say you have a string name NAME and you wanted to count numbers of 'a' in it.
    You should try

    int count = 0; //to count the numbers of appearance of letter

    for(int i = 0; i < NAME.length(); i++) //NAME.length() is a command to count length of characters in a string.
    {
    if(NAME.charAt(i) == 'a')
    count++;
    }

    print(number of a in NAME is count)

    This should help you
    Thanks but I already know it.I want to do it by recursion :/

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    Default Re: Finding the count of a letter in a String?

    Quote Originally Posted by vlkn448 View Post
    Thanks but I already know it.I want to do it by recursion :/
    Hello vlkn448!
    Are you familiar with the concept of recursion? What have you tried so far?

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    Default Re: Finding the count of a letter in a String?

    vlkn448
    a piece of cake.
    ...
    you run java Recur vulkan443 4 you'll get the result 2 letter(s) 4
    Last edited by copeg; July 15th, 2012 at 09:26 AM.

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    Administrator copeg's Avatar
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    Default Re: Finding the count of a letter in a String?

    @voodoo, lets not do other peoples homework for them. Your code has been removed as per the forum rules. Please read:
    The Problem with Spoon-feeding

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    Default Re: Finding the count of a letter in a String?

    OKAY, sorry!

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    Junior Member vlkn448's Avatar
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    Default Re: Finding the count of a letter in a String?

    I found! Here is my function

    	public static int finEs(String kelime){
     
    		if(kelime.equals("")){
    			return 0;
    		}else{
    			int k = 0;
    			if(kelime.substring(0, 1).equals("e")){
    				k++;
    			}
     
    			return k + eBul(kelime.substring(1));
    		}

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