Compare textfield value with database value

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:MyDSN","sa","sa");PreparedStatement st=con.prepareStatement("select id from manger");
ResultSet rs=st.ExecuteQuery();
String ID1=JTextField1.getText();
String ID2=rs.getString("id");
if(ID1.equals(ID2))
{
  //ID matched...
  // Do whatever you want...
}
else
{
  //ID do not match...
  // Throw error message...
}

/*
Note:--- 
1) import java.sql.*;
2) import javax.sql.*;
3) MyDSN is the name of the Data Source.
4) sa is the id for SQL server Authentication and sa is the password.
5) JTextField1 is the ID of Text Box on your form.
*/