!!!初学者求助!!!多谢！！！

[hylmail]

请问大侠：我在安装完jsdk1.3和 J2MEWTK之后，设置好了环境变量，可以正常编译以前写的java程序，可为什么编译不了现在j2me的程序。
例如：HelloWorld.java
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class HelloWorld extends MIDlet implements CommandListener{
private Display display;
private TextBox mainScreen=null;
private Command exit;

public HelloWorld(){
display=Display.getDisplay(this);
mainScreen=new TextBox("HelloWorld","Hello World",512,0);
exit=new Command("exit",Command.EXIT,2);
mainScreen.addCommand(exit);
mainScreen.setCommandListener(this);
}
public void atartApp(){
display.setCurrent(mainScreen);
}
public void pauseApp(){

}
public void destroyApp(boolean unconditional){

}
public void commandAction(Command c,Displayable s){
if(c==exit){
destroyApp(false);
notifyDestroyed();
}
}
}

编译错误：
HelloWorld.java:1: package javax.microedition.midlet does not exist
import javax.microedition.midlet.*;
^
HelloWorld.java:2: package javax.microedition.lcdui does not exist
import javax.microedition.lcdui.*;
^
HelloWorld.java:3: cannot resolve symbol
symbol : class MIDlet
location: class HelloWorld
public class HelloWorld extends MIDlet implements CommandListener{
^
HelloWorld.java:3: cannot resolve symbol
symbol : class CommandListener
location: class HelloWorld
public class HelloWorld extends MIDlet implements CommandListener{
^
HelloWorld.java:4: cannot resolve symbol
symbol : class Display
location: class HelloWorld
private Display display;
^
HelloWorld.java:5: cannot resolve symbol
symbol : class TextBox
location: class HelloWorld
private TextBox mainScreen=null;
^
HelloWorld.java:6: cannot resolve symbol
symbol : class Command
location: class HelloWorld
private Command exit;
^
HelloWorld.java:24: cannot resolve symbol
symbol : class Command
location: class HelloWorld
public void commandAction(Command c,Displayable s){
^
HelloWorld.java:24: cannot resolve symbol
symbol : class Displayable
location: class HelloWorld
public void commandAction(Command c,Displayable s){
^
HelloWorld.java:9: cannot resolve symbol
symbol : variable Display
location: class HelloWorld
display=Display.getDisplay(this);
^
HelloWorld.java:10: cannot resolve symbol
symbol : class TextBox
location: class HelloWorld
mainScreen=new TextBox("HelloWorld","Hello World",512,0);
^
HelloWorld.java:11: cannot resolve symbol
symbol : class Command
location: class HelloWorld
exit=new Command("exit",Command.EXIT,2);
^
HelloWorld.java:11: cannot resolve symbol
symbol : variable Command
location: class HelloWorld
exit=new Command("exit",Command.EXIT,2);
^
HelloWorld.java:27: cannot resolve symbol
symbol : method notifyDestroyed ()
location: class HelloWorld
notifyDestroyed();
^
14 errors

[runer]

类路径不对
把j2se jdk 的CLASSPATH改成j2me jdk的 CLASSPATH

[louisyyy]

老兄，把写好的代码放置在WTK的APPS目录下，然后运行ktoolbar程序，新建一个项目，指明主类等项目属性，然后点击编译，最后电击运行即可。
记住，不要用javac和java编译和运行

[hylmail]

尊敬的大侠：我按你们说的方法试了，还是同样的效果，难道我的操作有误？
环境变量设置：
classpath=.;D:\WTK104\lib;.D:\jdk1.3\lib\tools.jar;
java_home=D:\WTK104
path=D:\WTK104\bin;

这样是有问题吧。

[hact]

http://expert.csdn.net/expert/Topicview2.asp?id=1730735
你看看，不知有没有用
path和classpath设置好了估计是
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
~~~~~~~~~~~~~~~~~~~~~~~~ 这里有问题

[pl5th2001]

CLASSPATH
C:\j2sdk1.4.1_02\lib\dt.jar;C:\j2sdk1.4.1_02\lib\tool.jar;C:\j2sdk1.4.1_02\lib\tools.jar;
PATH
C:\j2sdk1.4.1_02\bin;C:\j2sdk1.4.1_02;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Real\RealSystem Producer Plus;C:\Program Files\Real\RealSystem Producer Plus\RealMediaEditor
你的环境变量少设了，不信你对比一下

[hylmail]

我在UltraEdit中编译和运行是最上面的错误信息，以下是我按louisyyy(louisyyy)说的方法操作的，这是怎么回事？多谢。
Creating project "HelloWorld"
Place Java source files in "d:\WTK104\apps\HelloWorld\src"
Place Application resource files in "d:\WTK104\apps\HelloWorld\res"
Place Application library files in "d:\WTK104\apps\HelloWorld\lib"
Project settings saved
Building "HelloWorld"
No sources to compile
Build failed

[jurist]

可以调试的，

///////////////////////
public void atartApp(){
display.setCurrent(mainScreen);
}

////////////////
应该为
////////////////////
public void startApp(){
display.setCurrent(mainScreen);
}

/////////////
"a "应该为"s"

可以在调试的，看看

[hylmail]

我的jdk1.3安装在了D:\jdk1.3下
j2mewtk安装在了D:\WTK104下
为解决以上问题，我需要怎么设置环境变量，然后怎么编译和运行？详细一点，郁闷死我了，多谢！！！我会加倍给分的，一定给分！！！

[hact]

你设好环境变量就好了
你再用查查midlet.* 和lcdui.*;果真在 javax.microedition下么？
然后检查你的环境变量是否正确

[hylmail]

抱歉，我是新手，请问如何接帐，即如何给回帖人分？如何选择性的给分，我觉得不应该给所有回帖的人分，而且得分多少也应该有所区别。谢谢各位！！！