CODEWITHSUNDEEP
javaswingnetbeansradio-button
Venkat
Venkat

Reputation: 21500

How do I use the Button Group Swing control in Java?

How do I add radio buttons to a button group using NetBeans?

Once I add them, how do I get selected radio button from the button group?

Upvotes: 14

Views: 90821

Answers (6)

user11205009
user11205009

Reputation: 11

private final ButtonGroup agreeDisagree = new ButtonGroup();

    JToggleButton tglbtnAgree = new JToggleButton("Agree");
    tglbtnAgree.setSelected(true);
    tglbtnAgree.setBounds(227, 127, 75, 23);
    agreeDisagree.add(tglbtnAgree);
    contentPane.add(tglbtnAgree);

    JToggleButton tglbtnDisagree = newJToggleButton("Disagree");
    tglbtnDisagree.setBounds(307, 127, 75, 23);
    agreeDisagree.add(tglbtnDisagree);
    contentPane.add(tglbtnDisagree);

Upvotes: 1

Tatyana Yufereva
Tatyana Yufereva

Reputation: 1

In your Navigator Pane, under "Other Components", select your button group. Then select the Code tab in the Properties pane. Select the ellipses (...) to edit the section "After-All-Set Code". Enter your code to add buttons to the button group as previously explained above.

For example:

attemptGroup.add(attemptRadio1); attemptGroup.add(attemptRadio2); attemptGroup.add(attemptRadio3);

Upvotes: 0

NixRam
NixRam

Reputation: 519

To select a radio button programmatically, try these:

private final ButtonGroup buttonGroup = new ButtonGroup();

JRadioButton btn01 = new JRadioButton("btn 1");
buttonGroup.add(btn01);
JRadioButton btn02 = new JRadioButton("btn 2");
buttonGroup.add(btn02);
JRadioButton btn03 = new JRadioButton("btn 3");
buttonGroup.add(btn03);
// gets the selected radio button
if(buttonGroup.getSelection().equals(btn01.getModel())) {
 // code
}

// similarly for the other radio buttons as well.

Upvotes: 2

Devon_C_Miller
Devon_C_Miller

Reputation: 16518

  1. Drag a ButtonGroup from the palette and drop it on your GUI. It will show up under Other Components in the Inspector panel.
  2. Right-click on it and Change variable name to something meaningful.
  3. Now select a radio button in your GUI.
  4. In the Properties panel look for the buttonGroup property.
  5. Click the combo box next to it and select your button group.

Upvotes: 32

twodayslate
twodayslate

Reputation: 2833

How to Use Buttons, Check Boxes, and Radio Buttons

ButtonGroup group = new ButtonGroup();
group.add(new JRadioButton("one"));
group.add(new JRadioButton("two"));
//TO FIND SELECTED
//use a loop on group.getElements();
//and check isSelected() and add them
//to some sort of data structure

Upvotes: 1

Mark Elliot
Mark Elliot

Reputation: 77104

I highly recommend reading this excellent tutorial. Here's an excerpt of code from the article that satisfies your question on how to create and add buttons to a ButtonGroup:

JRadioButton birdButton = new JRadioButton(birdString);
birdButton.setSelected(true);

JRadioButton catButton = new JRadioButton(catString);

   //Group the radio buttons.
ButtonGroup group = new ButtonGroup();
group.add(birdButton);
group.add(catButton);

As far as getting which item is selected, you basically need to iterate through the items in the group calling isSelected.

Upvotes: 20

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