JLabel not showing up

Question

For some reason my JLabel isn't displaying and I can't figure out why (editString DOES have a value).

compFrame.removeAll();
JPanel editPane = new JPanel();
editPane.setLayout(new GridLayout(0,1));
compFrame.add(editPane);
//JLabel lastValue = new JLabel(editString);
editPane.add(new JLabel(editString));

compFrame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
compFrame.setVisible(true);

Why are using `compFrame.removeAll();`. Remove that line. It will work — K Adithyan, Aug 17 '18 at 20:00
I needed to clear it because I'm using it elsewhere. Didn't know I had to add getContentPane(). — skirsch00, Aug 17 '18 at 20:15
`compFrame.removeAll();` 1) Use a [`CardLayout`](http://download.oracle.com/javase/8/docs/api/java/awt/CardLayout.html) as shown in [this answer](http://stackoverflow.com/a/5786005/418556). 2) In future, please post a [MCVE] or [Short, Self Contained, Correct Example](http://www.sscce.org/). — Andrew Thompson, Aug 18 '18 at 03:45

score 1 · Accepted Answer · answered Aug 17 '18 at 20:07

1

you should use removeAll on ContentPane. Try this

compFrame.getContentPane().removeAll();

The API doc for removeAll says:

This method changes layout-related information, and therefore, invalidates the component hierarchy. If the container has already been displayed, the hierarchy must be validated thereafter in order to reflect the changes.

answered Aug 17 '18 at 20:07

Shahid

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Worked! Thank you very much! – skirsch00 Aug 17 '18 at 20:14

JLabel not showing up

1 Answers1