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JLabel reference [message #256531]

Fri, 16 May 2008 19:32

Eclipse User

Originally posted by: web02.comcast.net

I am a newby to VEP. I got it loaded finally and to play, I added a
jButton and a jLabel to the default pane then created a button click event.

The code and some of the auto generated mouse clicked code looks like:

// Globals
private JPanel jContentPane = null;
private JButton jButton = null;
private JLabel jLabel = null;

.
.
.
// Buried in method private "JButton getJButton()"

public void mouseClicked(java.awt.event.MouseEvent e) {
System.out.println("mouseClicked()"); // TODO Auto-generated Event stub
mouseClicked()
jLabel.text="XXX"; // <-- MY CODE
}

If I try to reference jLabel.text in this method I get an error stating
"jLabel.texr is not visible".

Can someone explain what is happening here. I do not see a scope problem,
but obviously something is happening that I don't understand.

Thanx,
Bill

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Re: JLabel reference [message #256535 is a reply to message #256531]

Fri, 16 May 2008 20:43

Wayne Beaton

Messages: 554
Registered: December 2017

Senior Member

The "text" field is private. You can't access it outside of the class
itself.

Use the getText() and setText(String) methods instead.

HTH,

Wayne

On Fri, 2008-05-16 at 19:32 +0000, web wrote:
> I am a newby to VEP. I got it loaded finally and to play, I added a
> jButton and a jLabel to the default pane then created a button click event.
>
> The code and some of the auto generated mouse clicked code looks like:
>
> // Globals
> private JPanel jContentPane = null;
> private JButton jButton = null;
> private JLabel jLabel = null;
>
> .
> .
> .
> // Buried in method private "JButton getJButton()"
>
> public void mouseClicked(java.awt.event.MouseEvent e) {
> System.out.println("mouseClicked()"); // TODO Auto-generated Event stub
> mouseClicked()
> jLabel.text="XXX"; // <-- MY CODE
> }
>
>
> If I try to reference jLabel.text in this method I get an error stating
> "jLabel.texr is not visible".
>
> Can someone explain what is happening here. I do not see a scope problem,
> but obviously something is happening that I don't understand.
>
> Thanx,
> Bill
>

Report message to a moderator

Re: JLabel reference [message #256539 is a reply to message #256535]

Fri, 16 May 2008 20:53

Eclipse User

Originally posted by: web02.comcast.net

Thanks, I tried it and that error went away. Now, I am getting:

jLabel.setText cannot be resolved or is not a field.

The variable is the correct name. It appears to be in scope.

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Re: JLabel reference [message #256547 is a reply to message #256539]

Fri, 16 May 2008 20:58

Eclipse User

Originally posted by: web02.comcast.net

Thanks for your help. I got it.

For some reason. if I enter "jlabel.", I don't get the available method
list.

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Re: JLabel reference [message #256551 is a reply to message #256547]

Fri, 16 May 2008 21:14

Wayne Beaton

Messages: 554
Registered: December 2017

Senior Member

jlabel isn't defined. I think you mean jLabel. Java is case-sensitive.

After you type "jlabel", hit ctrl-space. Content assist will correct it
for you.

Wayne

On Fri, 2008-05-16 at 20:58 +0000, web wrote:
> Thanks for your help. I got it.
>
> For some reason. if I enter "jlabel.", I don't get the available method
> list.
>

Report message to a moderator

Re: JLabel reference [message #256561 is a reply to message #256539]

Fri, 16 May 2008 21:59

Wayne Beaton

Messages: 554
Registered: December 2017

Senior Member

setText is not a field. it's a method. You need the parens. It's a Java
thing.

jLabel.setText("Hello there");

HTH,

Wayne

On Fri, 2008-05-16 at 20:53 +0000, web wrote:
> Thanks, I tried it and that error went away. Now, I am getting:
>
> jLabel.setText cannot be resolved or is not a field.
>
> The variable is the correct name. It appears to be in scope.
>
>
>

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