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POwhy JRadioButton is not selected even by using setSelected(true)
 

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  1. POwhy JRadioButton is not selected even by using setSelected(true)
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    <p>i only want one of the above button to be selected by default but setSelected(true) is not working . when i run the below program none of the JRadoiButton is selected</p> <pre><code>import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class RadioDemo implements ActionListener { String buttonName; JPanel radioPanel=new JPanel(); ButtonGroup group = new ButtonGroup(); Enumeration enl; int result; ActionEvent e; JRadioButton birdButton[]; int i; Vector&lt;JComponent&gt; list; Vector&lt;String&gt; listName; public RadioDemo(Vector&lt;JComponent&gt; list,Vector&lt;String&gt; listName,Enumeration en,Enumeration enl) { birdButton=new JRadioButton[list.size()]; this.enl=enl; this.list=list; this.listName=listName; for(i=0;i&lt;list.size()-1;i++) { buttonName=(String)enl.nextElement(); birdButton[i] = new JRadioButton(buttonName); birdButton[i].setSelected(false); birdButton[i].setActionCommand(buttonName); group.add(birdButton[i]); birdButton[i].addActionListener(this); radioPanel.add(birdButton[i]); } buttonName=(String)enl.nextElement(); birdButton[i] = new JRadioButton(buttonName); birdButton[i].setSelected(true); birdButton[i].setActionCommand(buttonName); group.add(birdButton[i]); birdButton[i].addActionListener(this); radioPanel.add(birdButton[i]); radioPanel.setLayout(new BoxLayout(radioPanel,BoxLayout.Y_AXIS)); //birdButton.setBorder(BorderFactory.createEmptyBorder(5,5,5,5)); result = JOptionPane.showConfirmDialog(null, radioPanel, "Please choose", JOptionPane.OK_CANCEL_OPTION); show(); } /** Listens to the radio buttons. */ public void actionPerformed(ActionEvent e) { this.e=e; } public void show() { if (result == JOptionPane.OK_OPTION) { i=0; while(!birdButton[i].isSelected()) { i++; System.out.println(i); } //list.removeElementAt(i); //listName.removeElementAt(i); System.out.println(i); System.out.println(e.getActionCommand()); } } </code></pre> <p>i also try birdButton[0].setSelected(true); out of loop </p>
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    1. COIt would be nice if you could narrow down the code in your question to the essence. Am I correct that basically you are asking: "Why does the setSelected method on JRadioButton not work?"
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      1. USW. Goeman
    2. CO@W.Goeman: yes you are absolutly write . ok im posting the whole code
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    3. COFor better help sooner, post an [SSCCE](http://sscce.org/).
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      1. POwhy JRadioButton is not selected even by using setSelected(true)
      1. USAndrew Thompson
 

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