How to align JLabel-JTextField pairs vertically

Question

What I mean by a JLabel-JTextField pair is a JLabel component followed by a JTextField one, for example, "Parameter 1: -----" where "-----" denotes a blank JTextField.

The problem is, the width of JLabels varies due to the varying lengths of parameter names, so that the starts of JTextFields are not aligned vertically.

Is there any way to align the JLabels vertically to their right, so that the starts of JTextFields that follow would be aligned? Thanks.

Answer 1

Is there any way to align the JLabels vertically to their right, so that the starts of JTextFields that follow would be aligned?

1.6+, GroupLayout. E.G. from the JavaDocs:

Use the label alignment that pushes the text to the RHS.

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See also this answer for an MCVE.

Answer 2

You didn't specify which layout do you use, so a good layout to implement that would be GridBagLayout. The demo in oracle site is great to start with.

And a short example:

JPanel panel = new JPanel();
panel.setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0;
c.gridy = 0;
panel.add(new JLabel("Label 1:"), c);
c.gridx = 1;
c.gridy = 0;
panel.add(new JTextField("TextField 1"), c);
c.gridx = 0;
c.gridy = 1;
panel.add(new JLabel("Label 2:"), c);
c.gridx = 1;
c.gridy = 1;
panel.add(new JTextField("TextField 2"), c);