JCH
Java Community | Help. Code. Learn.•7mo ago
hemoglobina

2 spinners that can't "cross their values" in Java Swing.

Hello, I have a problem regarding 2 Spinner that are meant to not "cross their values" (Spinner A's value can't go any higher than spinner's B value, and spinner's B value can't go lower than spinner's A value). Here's my code for those 2 spinners. 
private void jSpinnerXBStateChanged(javax.swing.event.ChangeEvent evt) {                                        
        zakresXA = (float) jSpinnerXA.getValue();
        zakresXB = (float) jSpinnerXB.getValue();
        if (!(zakresXA < zakresXB)) {
            JOptionPane.showMessageDialog(mainOkno.this,
                    "Wartość górnego zakresu X nie może być mniejsza od dolnej lub jej równa",
                    "Błąd", JOptionPane.WARNING_MESSAGE);
        }
    }                                       

    private void jSpinnerXAStateChanged(javax.swing.event.ChangeEvent evt) {                                        
        zakresXA = (float) jSpinnerXA.getValue();
        zakresXB = (float) jSpinnerXB.getValue();
        if (!(zakresXA < zakresXB)) {
            JOptionPane.showMessageDialog(mainOkno.this,
                    "Wartość dolnego zakresu X nie może być większa od górnej lub jej równa",
                    "Błąd", JOptionPane.WARNING_MESSAGE);
        }
    }
private void jSpinnerXBStateChanged(javax.swing.event.ChangeEvent evt) {                                        
        zakresXA = (float) jSpinnerXA.getValue();
        zakresXB = (float) jSpinnerXB.getValue();
        if (!(zakresXA < zakresXB)) {
            JOptionPane.showMessageDialog(mainOkno.this,
                    "Wartość górnego zakresu X nie może być mniejsza od dolnej lub jej równa",
                    "Błąd", JOptionPane.WARNING_MESSAGE);
        }
    }                                       

    private void jSpinnerXAStateChanged(javax.swing.event.ChangeEvent evt) {                                        
        zakresXA = (float) jSpinnerXA.getValue();
        zakresXB = (float) jSpinnerXB.getValue();
        if (!(zakresXA < zakresXB)) {
            JOptionPane.showMessageDialog(mainOkno.this,
                    "Wartość dolnego zakresu X nie może być większa od górnej lub jej równa",
                    "Błąd", JOptionPane.WARNING_MESSAGE);
        }
    }
The main problem is that even thought the error pops up the value is still being changed. Let's say my spinner A value is 10 and B is 11. I change the value A to 11.5 than click one more time to increase, error shows up and after i close the dialog the value still increases. I tried to delete and add eventListeners but for some reason i couldn't get it to work.
4 Replies
JavaBot
JavaBot•7mo ago
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hemoglobina
hemoglobinaOP•7mo ago
I also tried to "cheese it" with just decreasing or increasing value's if they are too low or too high at the end of the functions but changing the value inside this function, call's the function again because the state of the spinner has been changed, thus creating recursion i think.
JavaBot
JavaBot•7mo ago
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JavaBot
JavaBot•7mo ago
Post Closed
This post has been closed by <@292647013240143873>.

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