帮忙看下这个错误是什么意思哈

[Ahh_Freshmeat]

WTK编译后提示如下：
Project "HelloWorld" loaded
Project settings saved
Building "HelloWorld"
D:\Program Files\WTK25\apps\HelloWorld\src\myMIDlet.java:6: invalid method declaration; return type required
public HelloWorld(){
^
1 error
com.sun.kvem.ktools.ExecutionException
Build failed

------------------以下是源代码------------------------

//this is my first MIDlet,HelloWorld
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
public class HellWorld extends MIDlet{
	Display display;
	public HelloWorld(){
		super();
		display=Display.getDisplay(this);
	}
	protected void startApp(){
		Form form=new Form("my fist MIDlet");
		form.append("Hello World!");
		display.setCurrent(form);
	}
	protected void pauseApp(){
	}
	protected void destroyApp(boolean arg0){
	}
}

[薛定谔之死猫]

return type required

HelloWorld方法没有返回数据类型，并且方法名一般以小写字母开头，这是习惯

[薛定谔之死猫]

import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
public class HellWorld extends MIDlet{
Display display;
public HelloWorld(){
super();
display=Display.getDisplay(this);
}
protected void startApp(){
Form form=new Form("my fist MIDlet");
form.append("Hello World!");
display.setCurrent(form);
}
protected void pauseApp(){
}
protected void destroyApp(boolean arg0){
}
}

构造方法可能是你的本意，但是红色的不一致，它当作是普通方法了，普通方法是需要返回类型的

[lixiurui]

类名和构造方法名字不同，少了一个o

[bianmazi]

[Quote=引用 3 楼 mscf 的回复:]
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
public classHellWorldextends MIDlet{
Display display;
publicHelloWorld(){
super();
display=Display.getDisplay(this);
}
protected void startApp(){
Form form=new Form("my fist MIDlet");
form.append("Hello World!");
display.setCurrent(form);
}
protected void pauseApp(){
}
protected void destroyApp(boolean arg…
[/Quote]

正解,HelloWorld写错啦...~~

[Ahh_Freshmeat]

谢谢各位了，是我太粗心了，HelloWorld写错了.