GuiFrame() {
    setTitle("Aplikacija (bez imena) v1.0.1");
    setSize(800, 600);
    setLocationRelativeTo(null);
    setContentPane(new GuiPanel());
    setDefaultCloseOperation(EXIT_ON_CLOSE);


    setResizable(false);
    setLocationRelativeTo(null);
    setVisible(true);

}

JLabel title = new JLabel("Aplikacija za dijagnozu bolesti");
JLabel diagnose = new JLabel("Preliminarna dijagnoza : ");

private final String[] listS1 = {"-Odaberi-", "Akutni", "Hronicni"};
JComboBox comboS1 = new JComboBox();
private int counterS1 = 0;

private final String[] listS2 = {"-Odaberi-", "Abdomen", "Udovi", "Glava"};
JComboBox comboS2 = new JComboBox();
private int counterS2 = 0;

private final ComboBoxModel[] models = new ComboBoxModel[5];

private final JComboBox comboS3 = new JComboBox();

JLabel simptom1 = new JLabel("Vrsta bola koju osecate : ");
JLabel simptom2 = new JLabel("U kom delu tela osecate taj bol :");
JLabel simptom3 = new JLabel("Vas bol osecate u (vidi sliku) : ");

public final ImageIcon rep = new ImageIcon(getClass().getResource("/images/rsz_flag_of_the_red_cross.png"));
public final ImageIcon rep2 = new ImageIcon(getClass().getResource("/images/rsz_s13.jpg"));
JLabel picture01 = new JLabel(rep);
JLabel picture02 = new JLabel(rep2);

JTextField diagnoseField = new JTextField();

Font font = new Font("Times new Roman", Font.BOLD, 14);

JButton reset = new JButton();
JButton calculate = new JButton();

public GuiPanel() {

    setLayout(null);

    models[0] = new DefaultComboBoxModel(new String[]{"-Odaberi-"});
    models[1] = new DefaultComboBoxModel(new String[]{"-Odaberi-", "1", "2", "3", "4", "5", "6", "7", "8", "9"});

    title.setBounds(90, 40, 200, 100);
    title.setFont(font);
    add(title);

    picture01.setBounds(400, 40, 350, 400);
    add(picture01);

    picture02.setBounds(400, 40, 350, 400);
    picture02.setVisible(false);
    add(picture02);

    simptom1.setBounds(10, 100, 200, 100);
    add(simptom1);

    simptom2.setBounds(10, 200, 200, 100);
    add(simptom2);

    simptom3.setBounds(10, 300, 200, 100);
    add(simptom3);

    comboS1.setBounds(245, 135, 90, 30);
    for (int i = 0; i < 3; i++) {
        comboS1.addItem(listS1[counterS1++]);
    }
    add(comboS1);

    comboS2.setBounds(245, 235, 90, 30);
    for (int i = 0; i < 4; i++) {
        comboS2.addItem(listS2[counterS2++]);
    }
    add(comboS2);

    comboS3.setBounds(245, 335, 90, 30);
    comboS3.setModel(models[0]);
    comboS3.disable();
    add(comboS3);

    diagnose.setBounds(10, 420, 200, 100);
    add(diagnose);

    diagnoseField.setBounds(10, 490, 350, 30);
    diagnoseField.setEditable(false);
    add(diagnoseField);

    reset.setText("Ponovo");
    reset.setBounds(640, 470, 110, 50);
    add(reset);

    calculate.setText("Dijagnoza");
    calculate.setBounds(400, 470, 110, 50);
    calculate.addActionListener(comboS1);
    add(calculate);

    CalculateButton c = new CalculateButton(calculate, comboS1, comboS2, comboS3, diagnoseField);
    AgainButton a = new AgainButton(reset, comboS1, comboS2, comboS3, diagnoseField, picture01);

    again();
    whenAkutniAbdomen();
    //diagnose();

}

public class CalculateButton implements ActionListener {

    private final JComboBox comboS1;
    private final JComboBox comboS2;
    private final JComboBox comboS3;
    private final JTextField diagnoseField;

    public CalculateButton(JButton calculate, JComboBox comboS1, JComboBox comboS2, JComboBox comboS3, JTextField diagnoseField) {
        this.comboS1 = comboS1;
        this.comboS2 = comboS2;
        this.comboS3 = comboS3;
        this.diagnoseField = diagnoseField;
        calculate.addActionListener(this);
    }

    @Override
    public void actionPerformed(ActionEvent e) {

        if (comboS1.getSelectedIndex() == 1 && comboS2.getSelectedIndex() == 1 && comboS3.getSelectedIndex() == 1) {
            diagnoseField.setText("Rak na pluca");
        }

    }

}