I am writinga palindrome checker widget.
I get one error:
pallindrome.cpp:37: error: 'lineEdit' was not declared in this scope
Here is the code for the main method
Qt Code: 
  1. void palindrome::check_palindrome()
  2. {
  3.     int rem,rem2,rem3,rem4,digit;
  4.     int place1,place2,place3,place4,place5;
  5.  
  6.     QMessageBox msgbox;
  7.  
  8.     digit=lineEdit.text();
  9.     rem= digit % 10000;
  10.     place1= (digit-rem)/10000;
  11.     rem2= rem % 1000;
  12.     place2= (rem-rem2)/1000;
  13.     rem3 = rem2 % 100;
  14.     place3= (rem2-rem3)/100;
  15.     rem4 = rem3 % 10;
  16.     place4= (rem3-rem4)/10;
  17.     place5=digit-(10000*place1+1000*place2+100*place3+10*place4);
  18.      if((place1==place5)&&(place2==place4))
  19.     {
  20.    msgbox.setText("number s a palindrome");
  21.    msgbox.exec();
  22.    }
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I put the line lineEdit->text() in the UI file so I don't know why it is giving me this error.
I am followoing a similar logic to the last prolblem. The only thing that I might need to do is convert the
lineEdit to a number , if it isn't already done.