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Derby JDBC Connection

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.Properties; public class MainClass {    public static void main(String[] args)    {       try {          String driver = "org.apache.derby.jdbc.EmbeddedDriver";          Class.forName(driver).newInstance();          Connection conn = null;          conn = DriverManager.getConnection("jdbc:derby:DerbyTestDB");          Statement s = conn.createStatement();          ResultSet rs = s.executeQuery("SELECT city, state, zipcode FROM zipcodes");          while(rs.next()) {             System.out.println("City   : "+ rs.getString(1));             System.out.println("State  : "+ rs.getString(2));             System.out.println("Zipcode: "+ rs.getString(3));             System.out.println();          }          rs.close();          s.close();          conn.close();       } catch(Exception e) {          System.out.println("Exception: "+ e);          e.printStackTrace();       }    } }                     DerbyJDBCConnection.zip( 4,054 k)