how load selected value in to the combobox in java?

Question

The selected table column value how to add into the combobox

Ajay Malik · Answer

try this code packagecom.javacoderanch.example.swing; importjavax.swing.*; importjava.awt.*; importjava.awt. event .ActionListener; importjava.awt. event .ActionEvent; public class ComboBoxSelectedItemextendsJFrame{ public ComboBoxSelectedItem(){ initialize(); } private void initialize(){ setSize(300,300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout( new FlowLayout(FlowLayout.LEFT)); // //Createacomboboxwithfouritemsandsetittoeditablesothatusercan //entertheirownvalue. // finalJComboBoxcomboBox= new JComboBox( new String[]{ "One" , "Two" , "Three" , "Four" }); comboBox.setEditable( true ); getContentPane().add(comboBox); // //Createtwobuttonthatwillsettheselecteditemofthecombobox.The //firstbuttonselect"Two"andandsecondbuttonselect"Four". // JButtonbutton1= new JButton( "SetTwo" ); getContentPane().add(button1); button1.addActionListener( new ActionListener(){ public void actionPerformed(ActionEvente){ comboBox.setSelectedItem( "Two" ); } }); JButtonbutton2= new JButton( "SetFour" ); getContentPane().add(button2); button2.addActionListener( new ActionListener(){ public void actionPerformed(ActionEvente){ comboBox.setSelectedItem( "Four" ); } }); // //Createatextfieldfordisplayingtheselecteditemwhenwepressthe //GetValuebutton.Whenuserentertheirownvaluetheselecteditem //returnedisthestringthatenteredbyuser. // finalJTextFieldtextField= new JTextField( "" ); textField.setPreferredSize( new Dimension(150,20)); JButtonbutton3= new JButton( "GetValue" ); getContentPane().add(button3); getContentPane().add(textField); button3.addActionListener( new ActionListener(){ public void actionPerformed(ActionEvente){ textField.setText((String)comboBox.getSelectedItem()); } }); } public static void main(String[]args){ SwingUtilities.invokeLater( new Runnable(){ public void run(){ new ComboBoxSelectedItem().setVisible( true ); } }); } }