Membuat Kelas Koneksi Java

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package sql;

/**
 *
 * @author elzaaqiea
 */
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;

public class koneksi {
     Connection conn;
  
    public Connection getConnection(){
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn=DriverManager.getConnection("jdbc:mysql://localhost/biodata","root","");
            System.out.println("Koneksi Berhasil");
            JOptionPane.showMessageDialog(null,"Berhasil Konek Ke database...");
          
        } catch (SQLException ex) {
            Logger.getLogger(koneksi.class.getName()).log(Level.SEVERE,null,ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(koneksi.class.getName()).log(Level.SEVERE,null,ex);
    }
    return conn;
  }
    public static void main(String[] args) {
       koneksi ko =new koneksi();
        ko.getConnection();
    }
}