Thread: <Identifier Expected> - Constructor method?

Hello,

I am receiving an error when I try to create a constructor method. It makes no sense at all to me because right next to the program, I have a correctly compiled version of it. What is identifier expected?



What am I doing wrong?

Did you see the attached image?

Full error in BlueJ:

The symbol namd in the error message was expected to appear at this point in the code. It was not there; instead, there was some other symbol. Try to think about why this symbol may be expected here>



Correct version:

  class Rectangle2
   {
      private double length, width;
      public Rectangle2(double l, double w)     // put instance variables inside constructor first
      {
         length = l;
         width = w;
      }
      public double area()
      {
         return length*width;
      }
      public Rectangle2 copy()
      {
         return new Rectangle2(length, width);
      }
   }

Version that won't compile

class Rectangle3
{
    private double length, width;
    public Rectangle3(double 1, double w)         // error at this line
    {
        length = 1;
        width = w;
    }
 
    public double area()
    {
        return length*width;
    }
 
    public Rectangle3 copy()
    {
        return new Rectangle3(length, width);
    }
 
}

Originally Posted by aussiemcgr

In the one that won't compile, is that length variable an l or a 1 (one)?
It looks like a 1.

WOW. Silly mistake. Although they do look pretty similar.

Thank you for finding it.