CODEWITHSUNDEEP
javaswinguser-interfacejcheckboxitemlistener
Wayne
Wayne

Reputation: 109

Toggling JCheckBox value

im trying to toggle my jcheckbox. I have set the default to check jcb2. my jcb1 is working fine but my jcb2 can't seem to be toggled on. I added a println and found that it gets printed but my jcb2 does not get check. 

class CheckBoxHandler implements ItemListener
{
    public void itemStateChanged(ItemEvent e)
    {

        if(jcb1.isSelected()) 
        {
            jcb1.setSelected(true);
            jcb2.setSelected(false);
        }
        if(jcb2.isSelected()) 
        {
            jcb1.setSelected(false);
            jcb2.setSelected(true);
            System.out.println("1");
        }
    }
}

Upvotes: 1

Views: 2320

Answers (1)

Lone nebula
Lone nebula

Reputation: 4878

If the first check-box is selected, they will both be selected the moment you select the second check-box. This means the first if-condition will be met, such that the second check-box will be deselected right away.

So instead of checking which check-boxes are selected, you should use the ItemEvent e to see which check-box you just selected.

if(e.getStateChange() == ItemEvent.SELECTED) {
    if(e.getItem() == jcb1) {
        jcb2.setSelected(false);
    } else {
        jcb1.setSelected(false);
    }
}

Upvotes: 4

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