TRUE or FALSE if cell contains number value

Question

I'm looking for the equivalent of the NUMBERVALUE function in Excel.
My equation in excel is:
=IF(AND(NUMBERVALUE($I8),NOT(NUMBERVALUE($C8)),NOT(NUMBERVALUE($D8)),NOT(NUMBERV ALUE($E8)),NOT(NUMBERVALUE($F8)),NOT(NUMBERVALUE($G8))),"ERROR","")
Reworking it to use ISBLANK, or a combination of EVEN and ODD doesn't work because it interprets blank cells as even (blank = 0) and spaces as not being blank (makes sense as it does have a length the the string instead of it just being length=0).
So I want to find a function that will tell me whether or not there is actual numerical data (integer between 0-1000) in a cell.

Answer 1

Tan-Tan wrote:
I'm now using checkboxes in a True or False 10-item test. I once used buttons, but I gave up and went to checkboxes. I managed to display them using this:I'm confused. So does your code use JRadioButtons (like your code says), or JCheckBoxes (like this sentence says)?
I intentionally just have 2 groups of radio button displayed to test if I could tally the right answer. No luck.How did you attempt to tally the right answer? How do you have the right answers stored? How were you getting the status of each JRadioButton?
So how do I tally the right answer upon clicking 'submit'. I know you have to have a new frame for that, but it's about tallying. Like the right answer for number 1 is false, for number 2 is true. If you click Submit, I should be able to show "You got 1 correct answer".Worry about how you display the tally later. For now just use a System.out.println. I'd use a for loop to get the status of each JRadioButton or JCheckBox, and check that against an array of correct answers.