How to use Jlist in Java

jList1 = new JList(verdierkalk);

                                              

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public int kalkulerklubbpoeng(int antpar){
    int i=0;
 
             System.out.println("MySQL Connect Example.");
             Connection conn = null;
             String url = "jdbc:mysql://localhost:3306/";
             String dbName = "kalkbridge";
             String driver = "com.mysql.jdbc.Driver";
             String userName = "root";
             String password = "root";
 
             PreparedStatement stmnt = null;
             ResultSet rst = null;
             try {
               Class.forName(driver).newInstance();
               conn = DriverManager.getConnection(url+dbName,userName,password);
               System.out.println("Connected to the database");
               stmnt = conn.prepareStatement("SELECT * FROM klubbpoengtab1 WHERE Antpar=44");
              // stmnt.setInt(1, 12,1);
               rst = stmnt.executeQuery();
               rst.next();
 
               jList1 = new JList ();
 
               ListModel verdierkalk = new DefaultListModel();
               
                    // Accessing the result by index...
               for (i=2;i<81;i++){
                   if (rst.getInt(i)==0){
                       break;
                   }
                   // Skriver ut resultat til listboks
                  verdierkalk.addElement(rst.getString(i));
 
                   
               }
               jList1 = new JList(verdierkalk);
               System.out.println("Disconnected from database");
               
             } catch (Exception e) {
               e.printStackTrace();
             } finally {
                 if(rst != null) {
                         try {rst.close();} catch(Exception e) {}
                 }
                 if(stmnt != null) {
                         try {stmnt.close();} catch(Exception e) {}
                 }
                 if(conn != null) {
                         try {conn.close();} catch(Exception e) {}
                 }
             }
 
 
    return i;
 
}
                                              

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jList1 = new JList ();
 
ListModel verdierkalk = new DefaultListModel();
boolean hasRecords = false;
while (rst.next()) {
	hasRecords = true;
..
 
}
if (!hasRecords) {
	System.out.println("No records found");
}
                                              

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