مشكل في comboBox

السلام عليكم ورحمة الله ولركاته

عندي مشكلة في اضافة عناصر ل ComboBox

حسب اضافة note

أي كلما اضف client

يضاف اسمه في comboBox

المحاولة في الكود المرفق

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

public class DialogueEtiquette extends JDialog implements ActionListener {

	private JTextField champDeTexte;
 public JComboBox jComboBox1;
 DialogueEtiquette(String titre) {

 super((JFrame) null, titre, true);

 JLabel jLabel1=new JLabel("Le nom de client");
 getContentPane().add(jLabel1);
 jLabel1.setBounds(10, 30, 130, 14);

 JButton bouton = new JButton("OK");
 getContentPane().add(bouton);
 bouton.setBounds(230, 60, 60, 23);
 bouton.addActionListener(this);


 champDeTexte = new JTextField(20);
 getContentPane().add(champDeTexte);
 champDeTexte.setBounds(135, 30, 160, 20);
 champDeTexte.addActionListener(this);

	jComboBox1 = new JComboBox();
 	jComboBox1.setBounds(135, 60, 70, 20);
 jComboBox1.addActionListener(this);
 getContentPane().add(jComboBox1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
 getContentPane().setLayout(layout);
 layout.setHorizontalGroup(
 layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGap(0, 332, Short.MAX_VALUE)
 );
 layout.setVerticalGroup(
 layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGap(0, 129, Short.MAX_VALUE)
 );

getContentPane().setBounds(100, 20, 300, 300);
 pack();
 java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit()
		.getScreenSize();

 setLocation((screenSize.width-getSize().width)/2,(screenSize.height-getSize().height)/2);
 setVisible(true);
 }

 public String getText() {
 return champDeTexte.getText();
 }
public String getItm() {


 return (String)jComboBox1.getSelectedItem();
 }



 public void actionPerformed(ActionEvent evt) {
 dispose();
 }
}

كود 2

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

public class DialogueEtiquetteS extends JDialog implements ActionListener {

	private JTextField champDeTexte;
	DialogueEtiquetteS(String titre) {

 super((JFrame) null, titre, true);

 JLabel jLabel1=new JLabel("La note:");
 getContentPane().add(jLabel1);
 jLabel1.setBounds(10, 30, 70, 14);


 champDeTexte = new JTextField(20);
 getContentPane().add(champDeTexte);
 champDeTexte.setBounds(80, 30, 230, 20);

 JButton bouton = new JButton("OK");
 getContentPane().add(bouton);
 bouton.setBounds(250, 60, 60, 23);
 bouton.addActionListener(this);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
 getContentPane().setLayout(layout);
 layout.setHorizontalGroup(
 layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGap(0, 332, Short.MAX_VALUE)
 );
 layout.setVerticalGroup(
 layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGap(0, 129, Short.MAX_VALUE)
 );

getContentPane().setBounds(100, 20, 300, 300);
 pack();
 java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit()
		.getScreenSize();

 setLocation((screenSize.width-getSize().width)/2,(screenSize.height-getSize().height)/2);
 setVisible(true);
 }

 public String getText() {
 return champDeTexte.getText();
 }
public void actionPerformed(ActionEvent evt) {
 dispose();
 }
}

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