title: adding elements from jtextarea to jlist by clicking on jbutton
body: <p>i have a jtextfield where i can add an element and by clicking on a button i want to add it to the jlist,
  now the problem i am having is that by clicking on the button it will add the element i want but when i add another element to the list the old one is gone and a new one appears in it's place.
  here is the code i have:</p>
  
  <pre><code> private void addActionPerformed(java.awt.event.ActionEvent evt) {                                    
  
      DefaultListModel  model1= new DefaultListModel();
  
      model1.addElement(desc.getText());
      jList2.setModel(model1);
      jList2.setSelectedIndex(0);
      desc.setText("");
  } 
  </code></pre>
  
  <p>can anyone help me with that?
  Thank you</p>