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Message: <blockquote data-quote="niyomax" data-source="post: 19016541" data-attributes="member: 514695">meka kohomada balanna kauruhari (weda karanawa) mam keewe standard eka <img src="/styles/default/xenforo/smilies/default/P.gif"  class="smilie" loading="lazy" alt=":P" title=":P    :P" data-shortname=":P" />DB Class[CODE]package elakiri;import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;public class DBClass {    private static final String USERNAME= "root";    private static final String PASSWORD= "";    private static final String CONN_STRING= "jdbc:mysql://localhost:3306/exampleelakiri";        public static Connection ConnectDB() throws SQLException{                Connection conn=null;                try{            conn=DriverManager.getConnection(CONN_STRING,USERNAME,PASSWORD);            return conn;        }catch(SQLException e){            System.err.println(e);             }            return null;    }   }[/CODE]login class ekema[CODE]public class LoginForm extends javax.swing.JFrame {Connection conn=null;ResultSet rs=null;PreparedStatement pst=null;    public LoginForm() throws SQLException {        initComponents();        conn= DBClass.ConnectDB();    }[/CODE]ButtonAction Perfomed ekata [CODE]   private void cmd_loginActionPerformed(java.awt.event.ActionEvent evt) {                                                  String sql = "SELECT * from adminstbl where username=? and password=?";        try{            pst=conn.prepareStatement(sql);            pst.setString(1, uname.getText());            pst.setString(2, pword.getText());                        rs=pst.executeQuery();            if(rs.next()){                JOptionPane.showMessageDialog(null, "Username and Password is correct");                rs.close();                pst.close();                close();                                Options s=new Options();                s.setVisible(true);                           }            else{                JOptionPane.showMessageDialog(null, "Username and Password is incorrect");            }        }        catch(Exception e)        {            JOptionPane.showMessageDialog(null, e);                 }           } [/CODE]</blockquote>

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