public final String toString(int depth){
  if (depth <= 0)   return "";
  return ("\n*DecimalNode" + super.toString(depth) + "Mantissa: "+ mantissa+ "; exponent: "+ exponent+ "; big value: "+ (bigVal != null ? bigVal.toString() : "<null>")+ "\n; image = "+ image);
}

public final String toString ( int depth ) { if ( depth <= 0 ) return "" ; return ( "\n*DecimalNode" + super . toString ( depth ) + "Mantissa: " + mantissa + "; exponent: " + exponent + "; big value: " + ( bigVal != null ? bigVal . toString ( ) : "<null>" ) + "\n; image = " + image ) ; }
displays this node as a string , implementing explorenode interface ; depth parameter is a bound on the depth of the portion of the tree that is displayed .
