I dont know whats wrong with this problem it keeps giving me an error, Bijan

Hi Bijan,

I'm not sure which part of the challenge you are on, so I'll walk through it all.

The first is asking you set a constant for the max character limit of 140. That can look something like:

public static final int MAX_CHARS = 140;

You can call that whatever you like, but keep it relevant! Next we need to return the remaining characters using the constant we just defined and the length of the existing mText property. This is in its own method which, again, you can call what you like.

My code looks like:

  public int charsRemaining(){
    return MAX_CHARS - mText.length();
  }

There, the charsRemaining method returns an integer value and takes no parameters. The value returned is the difference between the constant (140) and the result of calling the length() method on the mText field.

I hope that helps.

Steve.