JSlider 中间标签不能超过 3 个字符

Question

I have a JSlider and have 3 labels in my label table, one for 0 one for 50 and one for 100. Now in my ChangeListener state Changed I set the middle label. It works for all he numbers other then 100. Then for some reason it displays ... instead of 100:

    Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();
    final JLabel middleLabel = new JLabel("50");
    labelTable.put(0, new JLabel("0"));
    labelTable.put(50, middleLabel);
    labelTable.put(100, new JLabel("100"));
    final JSlider slider = new JSlider(0, 100, 50);
    slider.addChangeListener(new ChangeListener()
    {
      @Override
      public void stateChanged(ChangeEvent e)
      {
        middleLabel.setText("" + slider.getValue());
      }
    });
    slider.setLabelTable(labelTable);
    slider.setPaintLabels(true);

Question is that is there any way i can display the 100 instead of the ... what it is currently displaying.

Answer 1

My guess is that the middle label is too small to display "100" because it was initially created with the narrower text "50", and JSlider doesn't act as a container which resizes its children as their preferred size changes, it just lays out the labels once.

Try initialising the label with "100" instead of "50".