Trouble with the output with same program on different computer

Used the below coding in a login form button. Its running completely fine on the computer it was developed on but not on the other computer. The database is same on both computers. Its  showing a message "Username and/or Password don't match the Database!" but when I displayed the data that I got from db, everything is fine but still its showing the message instead of opening the other form


Code:
        String user = userTF.getText();
        String pass = passTF.getText();

        String sql="Select * from employeetable";
        try {
             Class.forName("com.mysql.jdbc.Driver");
             Connection con= (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/leicesterfloors","root","5618");
             Statement stmt=con.createStatement();
             ResultSet rs = stmt.executeQuery(sql);
             
             
             int tmp=0;
             while(rs.next()) {
             String uname=rs.getString("emp_code");
             String password=rs.getString("Password");
             String first = rs.getString("First_name");
             String sur = rs.getString("surname");
             String name = first+" "+sur;
             if ((user.equals(uname)) && (password.equals(pass))) {
             
        MainPage main = new MainPage();
        main.user(name);
        main.setVisible(true);
        
        dispose();
             tmp++;
             
    }
}
             if (tmp==0) {
             JOptionPane.showMessageDialog(null, "Username and/or Password don't match the Database!");
   }
}
       catch ( ClassNotFoundException | SQLException e){
       JOptionPane.showMessageDialog(this, e.getMessage());
}
        
        // TODO add your handling code here:
    }                                         

    private void anuBtnActionPerformed(java.awt.event.ActionEvent evt) {                                       

        adminTF.setText("");
        passTF1.setText("");
        jDialog1.setVisible(true);

        // TODO add your handling code here:
    }                                      

    private void levelTFKeyTyped(java.awt.event.KeyEvent evt) {                                 

        confirmBtn.setEnabled(true);