How to use Floating Point with JFrame?

Question

I have a small program to do and i am stuck with floating point. I want the result to be in 1 dicimle only.

this is my program

I want to make a floating point in both results whether i convert from F to C or C to F.

i am using JFrame, and i tried to use String.format but i doesn't work!

 private void cTFActionPerformed(java.awt.event.ActionEvent evt) {                                    
    float tempFahr = (float) ((Float.parseFloat(cTF.getText()))
            * 1.8 + 32);
    fTF.setText(tempFahr + "");
    String.format("%.1", tTF.getText());

The program is working fine, but i had a problem with the dicimles only.

Can you explain to me how to use it with JFrame ?

Edit:

we found the solution already

Solution to what? Please keep your original question so that others can benefit from it as well. — Dragan Bozanovic, Mar 11 '16 at 23:05

score 1 · Answer 1 · edited May 23 '17 at 11:50

1

You are not setting the formatted value to the text field, your formatting is basically a no-op. Store the formatted value in the text field:

fTF.setText(format(tempFahr));

Replace format with anything you choose for formatting.

edited May 23 '17 at 11:50

Community

1
1

answered Mar 11 '16 at 15:27

Dragan Bozanovic

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And in that case concatenating the empty string should become unnecessary :) – Thomas Mar 11 '16 at 15:28
@Thomas True, I copy-pasted it from the OP question. Edited, thanks. – Dragan Bozanovic Mar 11 '16 at 15:29
JFormattedTextField with number formatter, with mix/max decimal places – mKorbel Mar 11 '16 at 16:29
Thank you guys , that's was very helpful. :) – NewPie Programmer Mar 11 '16 at 22:16

How to use Floating Point with JFrame?

Edit:

1 Answers1