try/catch in gui

Hi

I am a

Answer 1

[Image Analyst]

Just put it in a while loop until they get it right. Warn them like this:

message = sprintf('Error: you entered %d when you should have entered a number in the range [0,99].', theirNumber);
uiwait(warndlg(message));

In general for a try/catch you can try this:

function blahblahblah()
  try
    % Some code that generates an error.
  catch ME
    message = sprintf('Error in blahblahblah():\n%s', ME.message);
    uiwait(warndlg(message));
  end

Answer 2

[Pourya Alinezhad]

just check the input box you created in GUI for numbers below desired value.if input number was bigger than upper bound you can call a error message box GUI.