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Thread: if...else

  1. #1
    Junior Member
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    Default if...else

    Hello to all,

     public Person elementAt(int index)
        {  
        	if (maxSize < index)
        	{
        		System.out.println("Wrong Index");
        		System.out.println("PLease Insert A Value From 0 To "+ maxSize);
        	}
        	else
        		return list[index];
     
        }

    On this code, an error appears keeps saying that this method must return a value.
    If I just add another return after the existing one…then works
    Any ideas?
    Thank you in advanced!!


  2. #2
    Administrator copeg's Avatar
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    Default Re: if...else

    Your conditional if (maxSize < index) is not returning anything. You can fix the compiling error by returning null, but if you do it this way you must safeguard any code that uses this function to make sure a nullpointerexception isn't thrown.
     public Person elementAt(int index)
        {  
        	if (maxSize < index)
        	{
        		System.out.println("Wrong Index");
        		System.out.println("PLease Insert A Value From 0 To "+ maxSize);
                    return null;
        	}
        	else
            {
        		return list[index];
            }
     
        }