为什么不说JSlider模型的粒度从0到1000000，并且总和为1000000，以使粒度更细？使用适用
Dictionary于LabelTable
的适当名称，用户可能不会知道它的范围不是从0到100。
例如：
import java.awt.Dimension;import java.awt.GridLayout;import java.util.ArrayList;import java.util.Dictionary;import java.util.Hashtable;import java.util.List;import javax.swing.*;import javax.swing.event.ChangeEvent;import javax.swing.event.ChangeListener;@SuppressWarnings("serial")public class linkedSliders2 extends JPanel { private static final int SLIDER_COUNT = 5; public static final int SLIDER_MAX_VALUE = 1000; private static final int MAJOR_TICK_DIVISIONS = 5; private static final int MINOR_TICK_DIVISIONS = 20; private static final int LS_WIDTH = 700; private static final int LS_HEIGHT = 500; private JSlider[] sliders = new JSlider[SLIDER_COUNT]; private SliderGroup2 sliderGroup = new SliderGroup2(SLIDER_MAX_VALUE); public linkedSliders2() { Dictionary<Integer, JComponent> myDictionary = new Hashtable<Integer, JComponent>(); for (int i = 0; i <= MAJOR_TICK_DIVISIONS; i++) { Integer key = i * SLIDER_MAX_VALUE / MAJOR_TICK_DIVISIONS; JLabel value = new JLabel(String.valueOf(i * 100 / MAJOR_TICK_DIVISIONS)); myDictionary.put(key, value); } setLayout(new GridLayout(0, 1)); for (int i = 0; i < sliders.length; i++) { sliders[i] = new JSlider(0, SLIDER_MAX_VALUE, SLIDER_MAX_VALUE / SLIDER_COUNT); sliders[i].setLabelTable(myDictionary ); sliders[i].setMajorTickSpacing(SLIDER_MAX_VALUE / MAJOR_TICK_DIVISIONS); sliders[i].setMinorTickSpacing(SLIDER_MAX_VALUE / MINOR_TICK_DIVISIONS); sliders[i].setPaintLabels(true); sliders[i].setPaintTicks(true); sliders[i].setPaintTrack(true); sliderGroup.addSlider(sliders[i]); add(sliders[i]); } } @Override public Dimension getPreferredSize() { return new Dimension(LS_WIDTH, LS_HEIGHT); } private static void createAndShowGui() { linkedSliders2 mainPanel = new linkedSliders2(); Jframe frame = new Jframe("linkedSliders"); frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); frame.getContentPane().add(mainPanel); frame.pack(); frame.setLocationByPlatform(true); frame.setVisible(true); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGui(); } }); }}class SliderGroup2 { private List<BoundedRangeModel> sliderModelList = new ArrayList<BoundedRangeModel>(); private ChangeListener changeListener = new SliderModelListener(); private int maxValueSum; public SliderGroup2(int maxValueSum) { this.maxValueSum = maxValueSum; } public void addSlider(JSlider slider) { BoundedRangeModel model = slider.getModel(); sliderModelList.add(model); model.addChangeListener(changeListener); } private class SliderModelListener implements ChangeListener { private boolean internalChange = false; @Override public void stateChanged(ChangeEvent cEvt) { if (!internalChange) { internalChange = true; BoundedRangeModel sourceModel = (BoundedRangeModel) cEvt.getSource(); int sourcevalue = sourceModel.getValue(); int oldSumOfOtherSliders = 0; for (BoundedRangeModel model : sliderModelList) { if (model != sourceModel) { oldSumOfOtherSliders += model.getValue(); } } if (oldSumOfOtherSliders == 0) { for (BoundedRangeModel model : sliderModelList) { if (model != sourceModel) { model.setValue(1); } } internalChange = false; return; } int newSumOfOtherSliders = maxValueSum - sourcevalue; for (BoundedRangeModel model : sliderModelList) { if (model != sourceModel) { long newValue = ((long) newSumOfOtherSliders * model .getValue()) / oldSumOfOtherSliders; model.setValue((int) newValue); } } int total = 0; for (BoundedRangeModel model : sliderModelList) { total += model.getValue(); } //!! System.out.printf("Total = %.0f%n", (double)total * 100 / linkedSliders2.SLIDER_MAX_VALUE); internalChange = false; } } }}编辑为让SliderGroup2使用BoundedRangeModels列表而不是JSliders。
