Java开发网 - 文本框的setEchoChar一直出错

Topic: 文本框的setEchoChar一直出错

1.文本框的setEchoChar一直出错

Posted by: benkhe
Posted on: 2005-12-27 16:16

import java.applet.*;
import java.awt.*;

public class simplefile extends Applet
{
TextField text1,text2,text3;
public void init()
{
text1=new TextField("请输入密码",10);
text1.setEditable(false);
text2=new TextField(10);
text2.setEchoChar("a");
text3=new TextField(33);
add(text1);add(text2);add(text3);
}
}

错误如下
simplefile.java:12: setEchoChar(char) in java.awt.TextField cannot be applied to
(java.lang.String)
text2.setEchoChar("a");
^
1 error

请指教，谢谢

2.Re:文本框的setEchoChar一直出错 [Re: benkhe]	Copy to clipboard
Posted by: benkhe Posted on: 2005-12-27 19:11 没人啊？

3.Re:文本框的setEchoChar一直出错 [Re: benkhe]

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Posted by: why
Posted on: 2005-12-27 22:14

The error message is clear enough:
setEchoChar(char) in java.awt.TextField cannot be applied to (java.lang.String)

http://java.sun.com/j2se/1.4.2/docs/api/java/awt/TextField.html#setEchoChar(char)
public void setEchoChar(char c)

i.e. text2.setEchoChar('a');

Don't expect to get response within 3 hours or even a day or two.
Be patient and stop posting meaningless message like the one above!
PLEASE STOP IT!

4.Re:文本框的setEchoChar一直出错 [Re: benkhe]	Copy to clipboard
Posted by: benkhe Posted on: 2005-12-27 22:26 不好意思，初学者，让版主受累了。

5.Re:文本框的setEchoChar一直出错 [Re: benkhe]	Copy to clipboard
Posted by: why Posted on: 2005-12-27 22:35 benkhe wrote: 不好意思，初学者，让版主受累了。 We could only help you once or twice, perhaps only on simple matters like this. You really have to be familiar with the error messages and basic debugging skills.