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  1. 12-21-2007, 06:02 AM #1
    jellyfish888
    jellyfish888 is offline Member
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    Default Help with my java servlet homework

    I am getting error saying:
    root cause

    java.lang.Error: Unresolved compilation problem:
    Arrays cannot be resolved

    Sorting.process(Sorting.java:38)
    Sorting.doGet(Sorting.java:14)
    javax.servlet.http.HttpServlet.service(HttpServlet .java:690)
    javax.servlet.http.HttpServlet.service(HttpServlet .java:803)

    My code:
    This is my HTML script
    Java Code: 
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<p>Sorting arrays</p>
<form action="Sorting" method=get>
<p>1 <input type=text name=word></p>
<input type=submit name=sort value=Submit>
</form>
</body>
</html>
    This is my servlet:
    Java Code: 
    
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Sorting extends HttpServlet
{
    public void doGet(HttpServletRequest request,
         HttpServletResponse response)
            throws IOException, ServletException
    {
      String word = request.getParameter("word");
      word = process(word);
      response.setContentType("text/html");
      PrintWriter out = response.getWriter();
      out.println("<html>");
      out.println("<head>");
      out.println("<title>Sorting Servlet</title>");
      out.println("</head>");
      out.println("<body>");
      out.println(word);
      out.println("</body>");
      out.println("</html>");
      }

      public void doPost(HttpServletRequest request,
      HttpServletResponse response)
      throws IOException, ServletException
      {
      doGet(request, response);
      }

      public String process(String word) {
      StringBuilder buf = new StringBuilder(512);
      if(word != null && word.trim().length() != 0) {
      String arr[] = word.replaceAll("\\s+", "").split(",");
      Arrays.sort(arr);
      for(String str : arr) {

      buf.append(str).append("<br>");
      }

      }

      else {
      buf.append("<br>").append("No input supplied").append("<br>");
      }
      return(buf.toString());
      }
      }
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  2. 12-21-2007, 09:12 AM #2
    wsaryada
    wsaryada is offline Senior Member
    Join Date
    Jun 2007
    Location
    Bali, Indonesia
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    Default

    You've missed an import in your class. The Arrays class is in the java.util package.

    Java Code: 
    import java.util.Arrays;
    Website: Learn Java by Examples
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  3. 12-21-2007, 05:41 PM #3
    jellyfish888
    jellyfish888 is offline Member
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    Default

    Thank you...It is the problem...thank you for the answer...
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