Add element to Jcombobox

[anilkumar_vist]

How to add elements to jcombo box after shown on the screen

[crikey]

You need to declare the combobox as an array for however many items you need. i.e.:

JComboBox[1] myComboBox = new JComboBox[1]();
String[10] myString = {"0","1","2","3","4","5","6","7","8","9"};
myComboBox[0] = (myString);
//continue processing until you get a state changed...
myComboBox[1] = "greetings";
//Now, to access the selections later, declare a variable private above the methods signature (or public,etc):
private String allChoices;
//....
public void itemStateChanged(ItemEvent e){
int selection;
selection = e.getSelectedIndex();
if (selection == 0){
}
//...continue
}

[Fubarable]

How to add elements to jcombo box after shown on the screen

What have you tried? What problems are you currently having with this attempt? Have you gone through the tutorial?

[prasad.vara]

I attached the code for creating JComboBox and adding item to JComboBox here.try it once.

public class Addcombo extends JFrame implements ActionListener {
JComboBox jComboBox1 = new javax.swing.JComboBox();
JButton b=new JButton("Add");
public Addcombo (){
super("combox");
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "item1","item2","item3"}));
JFrame j=new JFrame();
getContentPane().add(jComboBox1,BorderLayout.CENTE R);
getContentPane().add(b,BorderLayout.SOUTH);
setVisible(true);
pack();
j.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
b.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
DefaultComboBoxModel dc=(DefaultComboBoxModel)jComboBox1.getModel();
dc.addElement("item4");

}

public static void main(String s[]){
Addcombo p=new Addcombo ();
}




}

[prasad.vara]

I attached the code for creating JComboBox and adding item to JComboBox here.try it once.

public class Addcombo extends JFrame implements ActionListener {
JComboBox jComboBox1 = new javax.swing.JComboBox();
JButton b=new JButton("Add");
public Addcombo (){
super("combox");
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "item1","item2","item3"}));
JFrame j=new JFrame();
getContentPane().add(jComboBox1,BorderLayout.CENTE R);
getContentPane().add(b,BorderLayout.SOUTH);
setVisible(true);
pack();
j.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
b.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
DefaultComboBoxModel dc=(DefaultComboBoxModel)jComboBox1.getModel();
dc.addElement("item4");

}

public static void main(String s[]){
Addcombo p=new Addcombo ();
}




}

[DarrylBurke]

I attached the code for creating JComboBox and adding item to JComboBox here.try it once.

Do you mean twice?:D