Auto Suggesions

import java.awt.Point;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextField;


public class ShowSuggesions {

    private ArrayList<String> suggeshions;
    private JTextField field;
    private JTextField nextToFocus;
    private int width;
    private int height = 100;
    private Point point;
    private JFrame jWindow = new JFrame();
    private JScrollPane jScrollPane = new JScrollPane();
    private JList<String> jList = new JList<String>();
    private int size;

    public ShowSuggesions() {
    }

    private void addKeyEvents() {

       
       
        jList.addKeyListener(new KeyAdapter() {

            @Override
            public void keyReleased(KeyEvent e) {
                if(e.getKeyChar() ==10){
                    setSelectedValue();
                }
               
            }
           
        });
       
       
       
        jList.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseClicked(MouseEvent e) {
                setSelectedValue();
            }
           
        });

    }

    private void setSelectedValue() {
        field.setText(jList.getSelectedValue());
        jWindow.dispose();
        if(nextToFocus!=null){
            nextToFocus.requestFocus();
        }
       

    }

    private void init() {


        height = field.getWidth();
        width = (int) field.getPreferredSize().getHeight();
        Point locationOnScreen = field.getLocationOnScreen();
        point = new Point((int) locationOnScreen.getX(), (int) locationOnScreen.getY() + field.getHeight());
        jWindow.setAlwaysOnTop(true);
        jWindow.setUndecorated(true);
        jScrollPane.setVisible(true);
        jScrollPane.setAutoscrolls(true);
        jList.setVisible(true);
        jWindow.setVisible(true);
       
       

    }
   
   
   
    public void hideFrame(){
        jWindow.dispose();
    }

    public void show(Vector<String> suggeshions, JTextField field, KeyEvent event,JTextField nexToFocues) {

        if (suggeshions != null && suggeshions.size() > 0) {

            if (!jWindow.isVisible()) {
                this.field = field;
                init();
            }
           
            size = suggeshions.size();
            jList.setListData(suggeshions);
            jScrollPane.setViewportView(jList);
            jWindow.getContentPane().add(jScrollPane);
            this.nextToFocus = nexToFocues;
           
            jWindow.setSize(field.getWidth(), 100);
            jWindow.setLocation(point);
          
            addKeyEvents();


        }
    }
}