Text on JTextField doesn't appear until frame resize

Question

When I click on a button a property frame appears. Each row has these 3 fields : JLabel name, JTextField value, JSlider slider. My problem is that when the frame shows, it displays the values correctly, but the text in the JTextField fails to appear until I resize the frame for a bit. I use GridLayout for the JPanel containing the components Any suggestions on what I might do?

frame = new JFrame();
    frame.setSize(500, 400);
    frame.setTitle("Properties of " + nume);

    ok = new JButton("OK");
    no = new JButton("Cancel");

    modified = true;

// <"Labels, sliders ,text fields">

// <"add the components on the panel">

    buttonsPanel.add(ok);
    buttonsPanel.add(no);

    JSplitPane framePanel = new JSplitPane(JSplitPane.VERTICAL_SPLIT, jsp, buttonsPanel);
    framePanel.setDividerLocation(0.9);
    framePanel.setDividerSize(0);
    framePanel.setResizeWeight(1);

    frame.add(framePanel);

Here is what my frame shows the 1st time:

And then after I resize it the values appear:

Answer 1

在JTextField的父控件上调用doLayout（）