Append New Element

    DefaultListModel listModel1 = new DefaultListModel();

        ListModel<String> tempL=  jList1.getModel();

        

        for(int i=0;i<tempL.getSize();i++){

            listModel1.add(i, tempL.getElementAt(i));

        }

        

        listModel1.addElement(jTextField1.getText());

        

        jList1.setModel(listModel1);

        jTextField1.setText("");

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