Can't use classes in own package ... cannot be resolved into a type

I am fairly new to java and I am having the following problem.
i have a folder structure that goes as follows:
cs/uwm/client/io
and in this directory I have 3 files: ConsoleReader.java ConsoleWriter.java and ConsoleManager.java
and at the top of all three I have the following:
package cs.uwm.client.io;
ConsoleReader and ConsoleWriter are compiling fine
However in ConsoleManager I am using these classes ConsoleReader/Writer and It compile fine for me on a windows JDK in cywin, but when I try this on a Fedore6 system with an Eclipe Java Compiler v_686_R32x, 3.2.2 release I have the following error:
ConsoleWriter cannot be resolved into a type
when I try the following line: ConsoleReader reader = new ConsoleReader( System.in );
I tried importing cs.uwm.client.io but that didnt' work. I couldn't find anything on the forums here if you are trying to use a class defined in your package inside your package the way I am.
Any help would be great!

So it compiles from a commandline invocation of Java, but not from within Eclipse?
Sounds like you need to ask the question at an Eclipse site, since the problem is not a Java problem - and this forum is for Java language questions, not IDE support questions.
Probably caused by the fact that Eclipse doesn't use Sun's Java compiler.

Similar Messages

Can I use my fully owned CS2 on my iMac OX 10.9.5 as I paid over $1850.00 some 7 years ago for it and have been told by "Experts" that I can reinstall from my original software disks (which I have including all passwords etc required. Please assist as whe

Can I use my fully owned CS2 on my iMac OX 10.9.5 as I paid over $1850.00 some 7 years ago for it and have been told by "Experts" that I can reinstall from my original software disks (which I have including all passwords etc required. Please assist as when my old iMac died I find I could not get my CS2 to work. Very frustrating for some one my age who cannot afford a new InDesign. Thomas Bain

CS2 was created for the Power PC processor which your old iMac obviously was.
Your new Mac with OSX 10.9.5 is an Intel Mac and no longer runs Power PC applications.
For several years after the transition from Power PC to Intel Apple had provided an emulator called Rosetta that allowed Intel Macs to run Power PC applications.
However, the last version of the Mac OS that had Rosetta was OSX 10.6.8 Snow Leopard.
Even if you could find a copy of OSX 10.6.8 it would be highly unlikely that it would ever install on a newer Mac due to different firmware versions.
Your only hope is to buy an older used Mac that can run OS 10.6.8 Snow Leopard or earlier.
Sorry, but that ship has sailed.

Can i used old sol 9 packages on Sol 10 EA ?

i want to use Sol 10 EA, can i used old sol 9 packages on Sol 10 EA ?
...yakichi

oh, then i'd have to compile the sources, more work, but not impossible.
i want to setup a AMP (apache, mysql, php), server, that i'd use as a platform to develop server code.
...randy

Can I use MainStage without owning Logic?

I use Pro Tools and Reaper in the studio, so I won't to jump ship to Logic; simply b/c however nifty it is, it's not worth the steep time-consuming learning curve. However, for live performance as a keyboardist, I'm looking for a Mac-based VST host to be controlled by a USB/MIDI keyboard controller, and am wondering if MainStage might be the way to go. The price is so cheap, how could I go wrong? But no matter where I search, I don't get a clear answer to these questions:
Can I use MainStage without owning Logic?
For a $29 download, does MainStage also come with all the content (sounds, etc.) for its built-in instruments, or is it assuming you already have those b/c you presumably own Logic?
This question may need its own separate thread, but: Ideally, my keyboard setups for a "concert" may need as many as five VSTs per song (e.g., custom samples in Kontakt, Wurly, B-3, piano, glockenspiel, whatever) spread out in various discrete layers across a keyboard. Has anyone tested this more-complex and memory-taxing sort of a setup out in a live situation?
Thanks for any insight,
Peter

SASPro wrote:
Can I use MainStage without owning Logic?
If you buy it from the AppStore, YES
SASPro wrote:
For a $29 download, does MainStage also come with all the content (sounds, etc.) for its built-in instruments, or is it assuming you already have those b/c you presumably own Logic?
All the instrument and FX plugs are included, and a (massive) additional free download within the Mainstage application will get you all the extra content.
SASPro wrote:
This question may need its own separate thread, but: Ideally, my keyboard setups for a "concert" may need as many as five VSTs per song
Caution: Logic/Mainstage will only work with Audio Unit (AU) plugins, NOT VST. Most 3rd party plugs are available as AU plugs, but you need to make sure you have installed them.
SASPro wrote:
Has anyone tested this more-complex and memory-taxing sort of a setup out in a live situation?
Yes, and memory/CPU issues not withstanding, Mainstage generally works extremely well for this.
CCT

Some class that cannot be resolved to a type

Hello, I?m trying to use the[b] itext API for PDF creating from Java.
In order to do this you must include the package .jar in your classpath and import com.logawie.text.* in your java file. All this steps are obviusly, and work correctly, in JAVA, but i?m trying to develope a web application, using JSP.
Usually when I try to import a package from a JAR file that are allocated in the C:\j2sdk1.4.2_12\lib directory it doesn?t work. I solved this problem with some classes including it directly to the src.zip file. But with the itext package it doesn?t work, I don?t know if my solution is too bad, but with another classes it works, but with the itext package it says that all classes references "cannot be resolved to a type".
Anyone can help me? Thanks in advance.

when i try to depooy it then error comes
user cannot be resolved to a type
can any body help me
and tell me about classpath
//UserData.java
package user;
public class UserData {
String username;
String email;
int age;
public void setUsername( String value )
username = value;
public void setEmail( String value )
email = value;
public void setAge( int value )
age = value;
public String getUsername() { return username; }
public String getEmail() { return email; }
public int getAge() { return age; }
//GetName.jsp
<HTML>
<BODY>
<FORM METHOD=POST ACTION="SaveName.jsp">
What's your name? <INPUT TYPE=TEXT NAME=username SIZE=20><BR>
What's your e-mail address? <INPUT TYPE=TEXT NAME=email SIZE=20><BR>
What's your age? <INPUT TYPE=TEXT NAME=age SIZE=4>
<P><INPUT TYPE=SUBMIT>
</FORM>
</BODY>
</HTML>
//NextPage.jsp
<jsp:useBean id="user" class="user.UserData" scope="session"/>
<HTML>
<BODY>
You entered<BR>
Name: <%= user.getUsername() %><BR>
Email: <%= user.getEmail() %><BR>
Age: <%= user.getAge() %><BR>
</BODY>
</HTML>
//SaveName.jsp
<jsp:useBean id="user" class="user.UserData" scope="session"/>
<jsp:setProperty name="user" property="*"/>
<HTML>
<BODY>
Continue<font face="Arial"> </font>
</BODY>
</HTML>

Class cannot be resolved to a type

Hello, I�m trying to use the[b] itext API for PDF creating from Java.
In order to do this you must include the package .jar in your classpath and import com.logawie.text.* in your java file. All this steps are obviusly, and work correctly, in JAVA, but i�m trying to develope a web application, using JSP.
Usually when I try to import a package from a JAR file that are allocated in the C:\j2sdk1.4.2_12\lib directory it doesn�t work. I solved this problem with some classes including it directly to the src.zip file. But with the itext package it doesn�t work, I don�t know if my solution is too bad, but with another classes it works, but with the itext package it says that all classes references "cannot be resolved to a type".
Anyone can help me? Thanks in advance.

I found the answer:
You must allocate .jar in tomcat\common\lib directory and restart apache tomcat.
I hope it would be usefull to anybody.

JSP impot class cannot be resolved to a type

This has got to be an easy problem but we cannot seem to figure it out.
I am using Tomcat 6.0.18 and JRE 1.5.09
This is my class:
package hello;
public class hello{
public void run(){
System.out.println("Hello World");
}}This is my JSP:
<%@ page language="java" import="java.util.* , java.io.* , java.text.*" errorPage="error.jsp"%>
<%@ page import="hello.*" %>
<%
hello h = new hello();
h.run();
%>and this is the error:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 7 in the jsp file: /test.jsp
hello cannot be resolved to a type
4:
5: <%
6:
7: hello h = new hello();
8: h.run();
9:
10: %>
I have the "hello.class" in
C:\Tomcat6\webapps\ROOT\WEB-INF\classes\hello
C:\Tomcat6\webapps\ROOT\WEB-INF\classes
C:\Tomcat6\webapps\ROOT\WEB-INF
C:\Tomcat6\webapps\manager\WEB-INF\classes\hello
C:\Tomcat6\webapps\manager\WEB-INF\classes
C:\Tomcat6\webapps\manager\WEB-INF
C:\Tomcat6\webapps\host-manager\WEB-INF\classes\hello
C:\Tomcat6\webapps\host-manager\WEB-INF\classes
C:\Tomcat6\webapps\host-manager\WEB-INF
Can someone pelase offer a suggestion and please tell me where the CLASS file should actually reside? Please?

hii..
Try this code.I hope u wil get the output.
test.jsp
<%@ page language="java" import="java.util.* , java.io.* , java.text.*" errorPage="error.jsp"%>
<%@ page import="hello.*" %>
<html>
<head></head>
<body><%
hello h = new hello();
out.println( h.run());%>
</body>
</html>
hello.java
package hello;
public class hello{
public String run(){
String a="Hello World";
return a;
}}

Class name cannot be resolved to a type

Dear All,
I have one main class calling another class but I keep getting this error "
SMSClient cannot be resolved to a type". Before this I tried on other pc it was ok. Below is part of the codes. What could have been wrong? Can it be a missing library but how to trace that?
public class callSMSClient{   public static void main(String[] args) {
          SMSClient t1 = new SMSClient(0);
          t1.sendMessage("+6065544223","testing one two"); }}public class callSMSClient
          public static void main(String[] args)
     SMSClient t1 = new SMSClient(0);
     t1.sendMessage("+6065544223","testing one two");
public class SMSClient implements Runnable{
public final static int SYNCHRONOUS=0;
public final static int ASYNCHRONOUS=1;
private Thread myThread=null;
private int mode=-1;
private String recipient=null;
private String message=null;
public int status=-1;
public long messageNo=-1;
public SMSClient(int mode) {
this.mode=mode;
public int sendMessage (String recipient, String message)
      this.recipient=recipient;
      this.message=message;
      myThread = new Thread(this);
      myThread.start();
      //    run();
      return status;
public void run()
Sender aSender = new Sender(recipient,message);
try{
//send message
aSender.send ();
// System.out.println("sending ... ");
//in SYNCHRONOUS mode wait for return : 0 for OK, -2 for timeout, -1 for other errors
if (mode==SYNCHRONOUS)
while (aSender.status == -1)
{            myThread.sleep (1000);
if (aSender.status == 0)
messageNo=aSender.messageNo ;
catch (Exception e)
{         e.printStackTrace();
this.status=aSender.status ;
aSender=null;
}public class SMSClient implements Runnable{
public final static int SYNCHRONOUS=0;
public final static int ASYNCHRONOUS=1;
private Thread myThread=null;
private int mode=-1;
private String recipient=null;
private String message=null;
public int status=-1;
public long messageNo=-1;
public SMSClient(int mode) {
      this.mode=mode;
public int sendMessage (String recipient, String message){
    this.recipient=recipient;
    this.message=message;
    //System.out.println("recipient: " + recipient + " message: " + message);
    myThread = new Thread(this);
    myThread.start();
//    run();
    return status;
    public void run(){
    Sender aSender = new Sender(recipient,message);
    try{
      //send message
          aSender.send ();
         // System.out.println("sending ... ");
      //in SYNCHRONOUS mode wait for return : 0 for OK, -2 for timeout, -1 for other errors
      if (mode==SYNCHRONOUS) {
          while (aSender.status == -1){
            myThread.sleep (1000);
      if (aSender.status == 0)
         messageNo=aSender.messageNo ;
    }catch (Exception e){
        e.printStackTrace();
    this.status=aSender.status ;
    aSender=null;
}

Dear Ejp,
I would like to first share a simple case here first. Below is the simplied codes. Here I dont need any import statement. I keep both this in the same directory. I am using this command to compile javac callSMSClient.java. Why even this simple case is not working?
public class callSMSClient{
public static void main(String[] args)
     SMSClient t1 = new SMSClient(1);
     t1.sendMessage("+6014466044","testing one two");
public class SMSClient {
private int mode=-1;
private String recipient=null;
private String message=null;
public SMSClient(int mode) {
      this.mode=mode;
public void sendMessage (String recipient, String message){
    this.recipient=recipient;
    this.message=message;
    System.out.println("recipient: " + recipient + " message: " + message);
}

My class cannot be resolved to a type

I just installed jstl and I am trying to get it work using this test code. The class Customer is in WEB-INF/classes, an ArrayList of Customer objects is stored in the session in the attribute "results". Any ideas why this is failing?
<base href="<%= request.getScheme() +"://" + request.getServerName() + (request.getServerPort() != 80 ? ":" + request.getServerPort() : "") + request.getRequestURI() %> "/>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="java.util.Collection,
                 java.util.ArrayList"%>
<%@ taglib prefix="h" tagdir="/WEB-INF/tags" %>
<jsp:useBean id="customer" class="Customer" />
<jsp:useBean id="results" scope="session" class="java.util.ArrayList" />
<table>
<c:forEach items="${customer.results}" var="item">
<tr>
     <td><c:out value="${item.id}"/></td>
     <td><c:out value="${item.name}"/></td>
</tr>
</c:forEach>
</table>Here is the error I'm getting:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     Search.doPost(Search.java:95)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /listCustomers.jsp
Generated servlet error:
Customer cannot be resolved to a type
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
     org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:413)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:297)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     Search.doPost(Search.java:95)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.16 logs.

I added this line to my class:
package storePackage;and put the compiled class in: WEB-INF/classes/storePackage/
Then I changed my jsp to:
<base href="<%= request.getScheme() +"://" + request.getServerName() + (request.getServerPort() != 80 ? ":" + request.getServerPort() : "") + request.getRequestURI() %> "/>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="java.util.Collection,
                 java.util.ArrayList"%>
<%@ taglib prefix="h" tagdir="/WEB-INF/tags" %>
<c:set var="customer" value="<%= new Customer() %>"/>
<jsp:useBean id="customer" class="com.storePackage.Customer" />
<jsp:useBean id="results" scope="session" class="java.util.ArrayList" />
<table>
<c:forEach items="${customer.results}" var="item">
<tr>
     <td><c :o ut value="${item.id}"/></td>
     <td><c :o ut value="${item.name}"/></td>
</tr>
</c:forEach>
</table>Now I'm getting this:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: /listCustomers.jsp(9,0) The value for the useBean class attribute com.CustomerPackage.Customer is invalid.
     org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     Search.doPost(Search.java:95)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.apache.jasper.JasperException: /listCustomers.jsp(9,0) The value for the useBean class attribute com.CustomerPackage.Customer is invalid.
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
     org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1174)
     org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
     org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
     org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
     org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
     org.apache.jasper.compiler.Generator.generate(Generator.java:3304)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     Search.doPost(Search.java:95)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.16 logs.

Include JSP in JSP - Error: cannot be resolved to a type

Hello,
Several of my jsp pages include other jsp pages. The project has many errors: "x cannot be resolved to a type". Is there a way to resolve these errors? Below is a small example of the issue:
JSP #1:
<%@ page import="com.testing.Introduction" %>
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Hello</title>
</head>
<body>
<%
     Introduction intro = new Introduction();
     String speak = intro.sayHello();
%>
<p><%=speak %></p>
<%@ include file="Name.jsp" %>
</body>
</html> JSP #2:
<html>
<head>
<title>Name</title>
</head>
<body>
<%
     String speak2 = intro.sayName();
%>
<p>
<%=speak2 %>
</p>
</body>
</html>Class:
package com.testing;
public class Introduction
     public static void main(String[] args) {
     public Introduction() {
          super();
     public String sayHello() {
          return "Hello";
     public String sayName()     {
          return "My name is Sam";
}The error shows up in Name.jsp; the issue is with "intro". Any ideas how to resolve this issue?
Thank you in advance for your help!

The jsp page Name.jsp appears to be missing the import statement that appears in the first page.
<%@ page import="com.testing.Introduction" %>The included file is included character for character into the main page which is then treated as a single jsp page for the response. The include directive is invoked at the time of page translation. Given this, I don't see the purpose of using the <html> <head> and <title> tags in the second and included page. I don't think that this suggests the proper purpose of the include directive.
Note too that if the included file changes, all of the jsp files that call this file need to be updated as well. Servers can handle the alteration of the main jsp, but may not serve the altered content if the included file changes.
For more information see here. http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/JSPIntro8.html

TransformerFactory.newInstance cannot be resolved to a type"

Hi Techies,
i am writing simple application for creation of XML using java,
but while compiling i am getting the following error
"Exception in thread "main" java.lang.Error: Unresolved compilation problem:
     TransformerFactory.newInstance cannot be resolved to a type"
can any one help me to solve this error..
thanks in advance

hey here the code goes
package src;
import java.io.*;
import javax.xml.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.TransformerFactory;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class XMLCreator {
     * @param args
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          try{
               BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
               System.out.println("Enter the number of elements");
               String str = bf.readLine();
               int no = Integer.parseInt(str);
               System.out.println("Enter root: ");
               String root = bf.readLine();
               DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
               DocumentBuilder db = dbf.newDocumentBuilder();
               Document doc = db.newDocument();
               Element rootElement = doc.createElement(root);
               doc.appendChild(rootElement);
               for(int i=1;i<=no;i++){
                    System.out.println("Enter the data");
                    String element = bf.readLine();
                    System.out.println("Enter data");
                    String data = bf.readLine();
                    Element em = doc.createElement(element);
                    em.appendChild(doc.createTextNode(data));
                    rootElement.appendChild(em);
                    TransformerFactory tf = new TransformerFactory.newInstance();
                    Transformer tr = tf.newTransformer();
                    DOMSource domsrc = new DOMSource(doc);
                    StreamResult res = new StreamResult(System.out);
                    tr.transform(domsrc, res);
          }catch (Exception e) {
               // TODO: handle exception
}

Eclipse "cannot be resolved to a type" and new .JAR lib - config prob?

I'm trying to make use of the Commons HttpClient library in a project being built in Eclipse (3.1). I have a sample program (PostXML) that runs into "cannot be resolved to a type" on the "HttpClient" object. I think the problem is that the JRE 1.4.2 (Mac OS-X) system library includes an earlier release (3.0.1) of the HttpClient, but some of the classes used by PostXML are in the 3.1rc of HttpClient. I've downloaded the newer release, created a user library, and modified the load order so I can see the user library above (i.e. loaded prior to?) the System JRE in the package browser. I can see the HttpClient.class in the Package browser. I have "import org.apache.commons.httpclient.methods.*;" in the head of the application (that took tweaking). Several of the HttpClient methods resolve correctly, but not the HttpClient object constructor itself. I am also finding I cannot simply import all the HttpClient methods, but must import each explicitly (?). Suggestions?

I have gotten the sample code to compile and run,
though I still have some confusion about needing the
explicit imports (as compared to a wildcard import).
In the end I believe my "cannot be resolved to a
type" error was due to dependencies within the
HttpClient library on the commons-codec library. Once
I downloaded and installed that, the samples started
working better. Still trying to understand the API,
but making progress.when downloading third-party libraries, check the download page to see if it has any further dependencies. apache libraries are notoriously dependent on other apache libraries
regarding the imports, it's not that there's a need for explicit imports, it's more that wildcard imports are a bad idea. explicit imports gives other people looking at your code a first clue as to what it does, and it also can serve as an indicator that your class is too big, if there are lots of imports. wildcards hide this from you. apart from that, it makes no difference to your code, and imports don't even exist at runtime so it affects how your code actually runs, not at all

Shape cannot be resolved to a type

Hi all,
For my current programming in eclipse 3.1.0, I'm using an open source class. Within that class, the object 'newShape' of class 'Shape' is declared. When compiling, the following error message occurs:
Exception in thread "main" java.lang.Error: Unresolved compilation problems:
     Only a type can be imported. java.awt resolves to a package
     Shape cannot be resolved to a type
     newShape cannot be resolved
want does that mean? Does anybody has an answer?
Thanks in advance,
Andreas

Hi DrLaszloJamf,
you were right I had 'import java.awt;' in my code. But even without it, the problem remains. Listed below are the critical codelines.
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.util.Enumeration;
import java.util.Vector;
public class CellGridCanvas extends Canvas {
private boolean cellUnderMouse;
private Image offScreenImage;
private Graphics offScreenGraphics;
private Image offScreenImageDrawed;
private Graphics offScreenGraphicsDrawed;
private int cellSize;
private CellGrid cellGrid;
private Vector listeners;
private int newCellSize;
private Shape newShape;
The error message 'Shape cannot be resolved to a type' refers to the last line, where object 'newShape' is declared.

Cannot be resolved to a type

Hello everybody,
An error occurred while executing these codes
<%@page import="examples.simple.ActiveClass" %>
try
String userId=request.getParameter("userID");
String activateCode=request.getParameter("activationCode");
ActiveClass object=new ActiveClass();
String status=object.Activate(userId);
if(status.equals("success"))
ok
catch(Exception e)
The error displayed was:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 25 in the jsp file: /simple/activeAccount.jsp
ActiveClass cannot be resolved to a type
22: String userId=request.getParameter("userID");
23: String activateCode=request.getParameter("activationCode");
24:
25: ActiveClass object=new ActiveClass();
26: String status=object.Activate(userId);
27:
28: if(status.equals("success"))
Can anyone help me out please?

* ActiveClass.java
* Created on August 31, 2007, 3:04 PM
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package examples.simple;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;
import examples.sql.connect;
* @author Administrator
public class ActiveClass {
int userId;
Connection con=null;
/** Creates a new instance of ActiveClass */
public ActiveClass() {
public String Activate(String userId)
this.userId=Integer.parseInt(userId);
try
connect conn=new connect();
con=conn.createConnection();
Statement stmt=con.createStatement();
String sql="UPDATE registered_user SET user_privileges='Y' WHERE user_id = "+this.userId;
if(stmt.executeUpdate(sql)==1)
return "success";
else
return "failure";
catch (SQLException ex)
ex.printStackTrace();
return "failure";
}

JspWriter cannot be resolved to a type

The following is CheckAddress.jsp page which checks if the form has the name and phone fields filled in or not. If not then it must print the errors. But the problem I am having is that the Eclipse is showing me the error "JspWriter cannot be resolved to a type".
If I ignore this error and run the page in the j2ee preview server in eclipse than I get the following error:
>
Unable to compile class for JSP
An error occurred at line: 22 in the jsp file: /CheckAddress.jsp
Generated servlet error:
The method prinln(String) is undefined for the type JspWriter
An error occurred at line: 22 in the jsp file: /CheckAddress.jsp
Generated servlet error:
The method prinln(String) is undefined for the type JspWriter
An error occurred at line: 22 in the jsp file: /CheckAddress.jsp
Generated servlet error:
The method prinln(String) is undefined for the type JspWriter
Caused by:
org.apache.jasper.JasperException: Unable to compile class for JSP
>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<%--Provide Directives to inform JSP of packages needed--%>
<%@page language="java" import="java.util.*"%>
<%@page language="java" import="java.io.*"%>
<%--Specify JSTL tag library for use --%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<meta http-equiv="Content-Type" content="text/html; charaset=ISO-8859-1">
<title>Check Address</title>
</head>
<body>
<%--Declare the java bean for the addresslist to be queried --%>
     <jsp:useBean id="dbab" class="addressBean.DBAddressBean" />
<%--Use JSP scripting elements to define two methods --%>
<%!
     List<String> checkAddress(String Name, String Phone){
      List<String> errors = new ArrayList<String>();
      if((Name == null) || (Name.equals(""))){
           errors.add("Name must not be blank");
      if((Phone == null)||(Phone.equals(""))){
           errors.add("Phone must not be blank");
      return errors;
     void printErrors(JspWriter out, List<String> errors) throws IOException{
          //Report the errors
          out.prinln("<p class=\"error1\">The following errors occured: <br />");
          out.prinln("<ul>");
          Iterator<String> i = errors.iterator();
          while(i.hasNext()){
               out.println("<li type=\"disc\">"+i.next()+"</li>");
          out.prinln("</ul></p><p><b>please try again</b></p><br />");
%>
<%--Use the internal Scriptlet to call an internal method and get the request parameters with the form info--%>
<%
     List<String> errors = checkAddress(request.getParameter("Name"), request.getParameter("Phone"));
%>
<%--Use JSTL tags to get the values of the parameters for all of the form info --%>
     <c:set var="aid" value="${param.aid}"/>
     <c:set var="Name" value="${param.Name}"/>
     <c:set var="Street" value="${param.Street}"/>
     <c:set var="City" value="${param.City}"/>
     <c:set var="State" value="${param.State}"/>
     <c:set var="Zip" value="${param.Zip}"/>
     <c:set var="Phone" value="${param.Phone}"/>
<%--Use JSP elements to set the values in the Java Beans--%>
     <jsp:setProperty name="dbab" property="id" value="${aid}"/>
     <jsp:setProperty name="dbab" property="name" value="${Name}"/>
     <jsp:setProperty name="dbab" property="street" value="${Street}"/>
     <jsp:setProperty name="dbab" property="city" value="${City}"/>
     <jsp:setProperty name="dbab" property="state" value="${State}"/>
     <jsp:setProperty name="dbab" property="zip" value="${Zip}"/>
     <jsp:setProperty name="dbab" property="phone" value="${Phone}"/>
<%--Use the scriptlet to determine where to go now --%>
<%--Notice how the JSP element tag is used within the scriptlet, the scriptlet needs to be "closed" and "reopened"--%>
<%
     if(errors.size()==0){
          dbab.saveChanges();
          response.sendRedirect("AddressList.jsp");
     }else{
          //print errors
          printErrors(out, errors);
%>
     <jsp:include page="EditAddress.jsp"/>
<%
%>
</body>
Edited by: blinkaj on Apr 18, 2010 2:15 AM

Thanks elOpalo, even though eclipse is still showing the error, things are running fine after I rectified my typing mistake about the prinln. :)

Can't use classes in own package ... cannot be resolved into a type

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