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Message: <blockquote data-quote="niyomax" data-source="post: 18523451" data-attributes="member: 514695">........................................................................................................................මචංලා මේක මගේ යාලුවෙක්ගේ ජාවා ප්‍රොජෙක්ට් එකක්..අසයින්මන්ට් එකකට කරන..මේකේ කමෙන්ට් කරලා තියෙනවා //methana null pointer exception eka කියලා..පොඩ්ඩක් කෝඩ් එක බලලා..අවුල මොකක්ද කියන්න පුලුවන්ද <img src="/styles/default/xenforo/smilies/default/rolleyes.gif"  class="smilie" loading="lazy" alt=":rolleyes:" title="Rolleyes    :rolleyes:" data-shortname=":rolleyes:" /> import java.awt.Toolkit;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.util.logging.Level;import java.util.logging.Logger;import javax.swing.JOptionPane;import net.proteanit.sql.DbUtils; //additional jar file/**** @author sss*/public class NewSaleDruglist extends javax.swing.JFrame {Connection conn = null;ResultSet rs = null;PreparedStatement pst = null;/*** Creates new form SaleDruglist*/public NewSaleDruglist() throws SQLException {initComponents();initialize();//calling method for change java title bar iconupdateTable();//calling method for updating table from dbconn = MYSQLConnect.ConnectDB();}//changing the titile bar java iconprivate void initialize(){this.setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("stock.png")));}private void updateTable(){try {String sql = "SELECT * FROM druginfo";pst=conn.prepareStatement(sql);//methana null pointer exception ekapennanners=pst.executeQuery();table_list.setModel(DbUtils.resultSetToTableModel(rs));} catch (Exception ex) {JOptionPane.showMessageDialog(null, "Error : "+ex);}}</blockquote>

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