forras

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class Elotet implements ItemListener{


    String[] tomb = {"LEHETOSEGEK","","VALAMI1", "VALAMI2", "VALAMI3"};
    JFrame foFrame = new JFrame();
    JPanel foPanel1 = new JPanel();
    JPanel foPanel1_1 = new JPanel();
    JComboBox comboBox = new JComboBox(tomb);

    GridLayout foGrid = new GridLayout(2,1);
    GridLayout foFrameGrid = new GridLayout(2,1);
    FlowLayout foFlow = new FlowLayout();

    public void startol(){

        comboBox.setEditable(true);
        comboBox.addItemListener(this);

        foFrame.setSize(400, 300);
        foFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        foPanel1.setLayout(foGrid);
        foPanel1_1.setLayout(foFlow);
        foPanel1_1.add(comboBox);
        foPanel1.add(foPanel1_1);

        foPanel1.setBackground(Color.GRAY);
        foFrame.setLayout(foFrameGrid);
        foFrame.add(foPanel1);
        foFrame.setVisible(true);
    }


    public static void main(String args[]){

        Elotet meghivas = new Elotet();
        meghivas.startol();


    }


    public void itemStateChanged(ItemEvent e) {

        String item1 = (String) e.getItem();

        if (item1 == "VALAMI1"){
            System.out.println(item1);
        }
        else if (item1 == "VALAMI2"){
            System.out.println(item1);
        }
        else if (item1 == "VALAMI3"){
            System.out.println(item1);

        }
    }

}