Using Arithmetic Evaluator with buttons help

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Richard - 18 Apr 2004 20:09 GMT

Hi I'm making a simple calculator program using Arithmetic Evaluator
and while I can get it to do its stuff when using textfields for data
entry.
But I would like to use buttons for the entry digits but have no idea
how to get the info from the buttons to the evaluatorso it can
calculate the result

does anyoen have any links to tutorials that will cover it

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Roedy Green - 18 Apr 2004 21:16 GMT

>But I would like to use buttons for the entry digits but have no idea
>how to get the info from the buttons to the evaluatorso it can
>calculate the result

Each button needs an event handler that takes the digit and append it
to the display field value, and redisplays that result.

You might write a program to write the source code for a program in a
pedestrian way, or use an ARRAY of button objects, and generic code to
place the buttons and a common action handler.

For example, take the button number and use the / or % operator to
determine the row/column where it fits.

--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.

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Using Arithmetic Evaluator with buttons help

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