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Thread: Reverse character using void method

  1. #1
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    Talking Reverse character using void method

    I need help to write a parameterless, void and recursive method used to reverse a string of character. Can anybody help me with the last part?
    This is the code I been able to write so far :


    import java.util.*;
    public class Labex78
    {
        public static String put = put;
        static boolean check= true;
                   public static void main(String[] args)
    	       {
     
                    reverse();
                   }   
                  public static void reverse()			
                    {
                     Scanner kbd= new Scanner(System.in);
                     if(check==true){
                     System.out.println("Enter 5 characters");
                       put = kbd.nextLine();
                      check= false;}
     
                     int len = put.length();
                       if(len<=1)
                       {
                         System.out.print(put);
                       }
                       else
                       {
                        String rev ="";
                        rev += put.charAt(put.length()-1); 
                        put= put.substring(0,put.length()-1);
                        reverse();
                        System.out.println(" Read backwards, character becomes "+ rev);
                       }
                  }
     }


  2. #2
    mmm.. coffee JavaPF's Avatar
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    Default Re: Reverse character using void method

    What is the problem?
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  3. #3
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    Default Re: Reverse character using void method

    doesn't work . that ELSE part is not reversing the string. and I was wondering how I can use a void , parameterless function that is also recursive without keeping ro prompt the user to enter a string of characters. Basically how do use a string input by a user in such function??

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