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Thread: variable might not have been initialized!!

  1. #1
    Junior Member bassie's Avatar
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    Unhappy variable might not have been initialized!!

    I keep getting this error message with this code and I don't understand what it's telling me! Do I need to sort of merge the two chatter methods?

     
    .\Chatter.java:96: error: variable name might not have been initialized
        }
        ^
    1 error

    And that is the whole error. it points towards the } which is closing the final method (public Chatter).

    I would really appreciate if someone could help me with this, I also get the feeling that I will need to change a method in another class which uses this one once this problem has been resolved..

    The Code
     
    public class Chatter implements Runnable
    {
     
       /**
        * The name of the Chatter.
        * This should be the ID chosen by the remote user on joining
        * the chatroom.
        * This value is set in the constructor.
        *
        */
       public final String name;
     
     
    	public void run()
    	{
    	}
       /**
        * Creates a new <code>Chatter</code> instance with a given name.
        * This constructor implements operation newChatter in the
        * <a href="chatroom.maude">Chatter specification</a>.
        *
        * @param n the name for this Chatter
        */
     
       public Chatter(String n)
       {
    		name = n;
       }
     
       /**
        * Return the {@link #name name} of the Chatter.
        * This method implements operation getName in the
        * <a href="chatroom.maude">Chatter specification</a>.
        *
        * @return the {@link #name name} of the Chatter
        */
       public String getName()
       {
          return name;
       }
     
       /**
        * Send a message across the network to the remote user.
        *
        * @param msg the msg to be sent
        */
       public void sendToUser(String msg)
       {
       }
     
        Chatter theChatter;
       /**
        * Pointer to the tail of the list.
        * Default scope modifier, so that this field can be efficiently
        * accessed in class ChatterList.
        *
        */
       Chatter next;
       /**
        * Creates a new <code>ChatterNode</code> instance.
        *
        * @param c the Chatter at this node
        * @param next the tail of this list
        */
    	   public Chatter(Chatter c, Chatter next)
       {
    		this.next = next;
    		theChatter = c;
       }
     
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: variable might not have been initialized!!

    Assign the variable a default value when you define it.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Junior Member bassie's Avatar
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    Default Re: variable might not have been initialized!!

    Thanks for the reply again Norm!

    I assume that by this you mean that when I define variable name I should set it as something, i.e.

     
    public final String name = x;

    However I can't do this because it is a final string. If I get rid of the final, I get the old "could not find symbol" on x!

    Am I completely off track?

  4. #4
    Super Moderator curmudgeon's Avatar
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    Default Re: variable might not have been initialized!!

    What is x? It doesn't appear to be a String. Why not get rid of final and assign name an initial value that makes more sense like ""?

  5. The Following User Says Thank You to curmudgeon For This Useful Post:

    bassie (December 4th, 2012)

  6. #5
    Super Moderator Norm's Avatar
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    Default Re: variable might not have been initialized!!

    Try adding another constructor that sets a value for the variable so that the compiler will know that the variable has been given a value.
    If you don't understand my answer, don't ignore it, ask a question.

  7. The Following User Says Thank You to Norm For This Useful Post:

    bassie (December 4th, 2012)

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