I wrote small program for search Person's Name via Text field as I can search in mobile phone Contacts.
I put 5 names in combo box, when I search 'a' then it shows all 5 names because each have character 'a', then I select 3rd or 4th name by mouse, then it should show in Text field where I wrote 'a'.
Each time it replace 'a' in text field to 1st name in combo box, I want to write 2nd, 3rd character, or select from drop down list in combo box.
But I can't do that.
For reference here is my program
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.Arrays;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
class SearchName extends JFrame {
private static final long serialVersionUID = -3725136550174445695L;
private final JPanel contentPane;
private JTextField textField;
private static JComboBox<Object> comboBox;
private static final List<String> name_list = Arrays.asList("RAM", "Abraham", "Adam", "Dawson", "Elisha");
private final Object[] nameArray = name_list.toArray();
private static final String specailcharacter = "[^a-zA-Z0-9]";
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
SearchName frame = new SearchName();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public SearchName() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
textField = new JTextField();
textField.setBounds(10, 26, 297, 20);
contentPane.add(textField);
textField.setColumns(10);
JButton btnNewButton = new JButton("Search");
btnNewButton.setBounds(317, 25, 89, 23);
contentPane.add(btnNewButton);
comboBox = new JComboBox<Object>();
comboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
myBox(evt);
}
});
comboBox.setVisible(true);
comboBox.setOpaque(false);
comboBox.setBorder(new LineBorder(new Color(171, 173, 179)));
comboBox.setMaximumRowCount(20);
comboBox.setBackground(Color.WHITE);
comboBox.setBounds(10, 46, 297, 20);
contentPane.add(comboBox);
textField.addKeyListener(new KeyAdapter() {
public void keyReleased(KeyEvent arg0) {
if (arg0 != null) {
if (arg0.getSource() != null) {
txtPassKeyTyped(arg0);
}
}
}
});
}
protected void myBox(ActionEvent evt) {
if (comboBox.getSelectedItem() != null) {
textField.setText(comboBox.getSelectedItem().toString());
}
}
private void txtPassKeyTyped(KeyEvent arg0) {
if (arg0 != null) {
if (arg0.getSource() != null) {
clear();
if (comboBox.getItemCount() == 0) {
textField = (JTextField) arg0.getSource();
if (textField != null) {
if (textField.getText() != null) {
if (!textField.getText().isEmpty()) {
search(textField.getText(), "name", nameArray.length, nameArray);
try {
comboBox.showPopup();
} catch (Exception e1) {
e1.printStackTrace();
}
comboBox.setMaximumRowCount(20);
}
}
}
}
}
}
}
private void clear() {
if (comboBox.getItemCount() > 0) {
comboBox.removeAllItems();
comboBox.setMaximumRowCount(0);
comboBox.hidePopup();
}
}
private static void search(String searchString, String type, int numberOfContacts, Object[] contacts) {
if (searchString != null) {
if (!searchString.isEmpty()) {
int found = 0;
int[] results = new int[numberOfContacts];
Checker c = null;
if (type.equals("name")) {
c = new Checker() {
public boolean check1(Object p, String searchString) {
boolean a = false;
if (p.toString().toLowerCase().replaceAll(specailcharacter, "").contains(searchString)) {
a = true;
} else if (p.toString().toUpperCase().replaceAll(specailcharacter, "")
.contains(searchString)) {
a = true;
} else if (p.toString().replaceAll(specailcharacter, "").contains(searchString)) {
a = true;
} else {
a = false;
}
return a;
}
};
}
for (int x = 0; x < numberOfContacts; x++) {
if (c != null) {
if (c.check1(contacts[x], searchString)) {
results[found] = x;
found++;
}
}
}
if (found > 0) {
for (int x = 0; x < found; x++) {
comboBox.addItem(contacts[results[x]]);
comboBox.revalidate();
comboBox.repaint();
}
}
}
}
}
private static interface Checker {
public boolean check1(Object p, String searchString);
}
}
