AreaCode.java Source code

Introduction

Here is the source code for AreaCode.java

Source

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Properties;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class AreaCode extends HttpServlet {
    private Object[][] data = new Object[][] { { "Yukon Territory", new int[] { 867 } }, };
    Properties lookup = new Properties();

    public void init() {
        for (int i = 0; i < data.length; i++) {
            Object[] record = data[i];
            String state = (String) record[0];
            int[] codes = (int[]) record[1];
            for (int j = 0; j < codes.length; j++) {
                lookup.put(String.valueOf(codes[j]), state);
            }
        }
    }

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/vnd.wap.wml");
        PrintWriter out = res.getWriter();

        String msg = null;

        String code = req.getParameter("code");
        String region = null;
        if (code != null) {
            region = lookup.getProperty(code);
        }

        out.println("<?xml version=\"1.0\"?>");
        out.println("<!DOCTYPE wml PUBLIC " + "\"-//WAPFORUM//DTD WML 1.1//EN\" "
                + "\"http://www.wapforum.org/DTD/wml_1.1.xml\">");

        out.println("<wml>");
        out.println("<card id=\"Code\" title=\"Code\">");
        out.println("  <p>");
        out.println("  Area code '" + code + "'<br/>");
        if (region != null) {
            out.println("  is " + region + ".<br/>");
        } else {
            out.println("  is not valid.<br/>");
        }
        out.println("  </p>");
        out.println("</card>");
        out.println("</wml>");
    }

}
/*
<?xml version="1.0"?>
    
<!DOCTYPE wml PUBLIC
  "-//WAPFORUM//DTD WML 1.1//EN"
  "http://www.wapforum.org/DTD/wml_1.1.xml">
    
<wml>
  <card id="AreaCode" title="Enter an Area Code">
<do type="accept" label="Enter">
  <go href="servlet/AreaCode?code=$(code)"/>
</do>
<p>
Enter an Area Code: <input type="text" name="code"/>
</p>
  </card>
</wml>
    
*/