下面列出了java.util.Dictionary#elements ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public Dimension getPreferredHorizontalSize() {
Dimension dim = super.getPreferredHorizontalSize();
Rectangle rect = new Rectangle(0, 0, 0, 0);
rect.setSize(dim);
adjustRect(rect, true);
Dictionary<?, ?> dict = slider.getLabelTable();
if (dict != null && !dict.isEmpty()) {
int totalLabelWidth = 0;
Enumeration<?> labels = dict.elements();
while (labels.hasMoreElements()) {
Object obj = labels.nextElement();
if (obj instanceof Component) {
totalLabelWidth += ((Component) obj).getPreferredSize().width;
}
}
totalLabelWidth += getThumbWidth();
rect.width = Math.max(rect.width, totalLabelWidth);
}
return rect.getSize();
}
private static JSlider makeSlider(String title) {
JSlider slider = new JSlider(0, 100, 40);
slider.setBorder(BorderFactory.createTitledBorder(title));
slider.setMajorTickSpacing(10);
slider.setPaintTicks(true);
slider.setPaintLabels(true);
Dictionary<?, ?> dictionary = slider.getLabelTable();
if (Objects.nonNull(dictionary)) {
Enumeration<?> elements = dictionary.elements();
while (elements.hasMoreElements()) {
JLabel label = (JLabel) elements.nextElement();
int v = Integer.parseInt(label.getText());
if (v > MAXI || v < MINI) {
label.setForeground(Color.RED);
}
}
}
slider.getModel().addChangeListener(e -> {
BoundedRangeModel m = (BoundedRangeModel) e.getSource();
m.setValue(Math.max(MINI, Math.min(m.getValue(), MAXI)));
});
return slider;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
@SuppressWarnings("rawtypes")
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration<?> elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
@SuppressWarnings("rawtypes")
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration<?> elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
@Override
public Cookie[] getCookies()
{
Dictionary<String, Cloneable> d;
if (cookies == null && !(d = base.getCookies()).isEmpty()) {
cookies = new Cookie[d.size()];
final Enumeration<Cloneable> e = d.elements();
for (int i = 0; i < cookies.length; i++) {
cookies[i] = (Cookie) e.nextElement();
}
}
return cookies;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}
/**
* Returns true if all the labels from the label table have the same
* baseline.
*
* @return true if all the labels from the label table have the
* same baseline
* @since 1.6
*/
protected boolean labelsHaveSameBaselines() {
if (!checkedLabelBaselines) {
checkedLabelBaselines = true;
Dictionary dictionary = slider.getLabelTable();
if (dictionary != null) {
sameLabelBaselines = true;
Enumeration elements = dictionary.elements();
int baseline = -1;
while (elements.hasMoreElements()) {
JComponent label = (JComponent) elements.nextElement();
Dimension pref = label.getPreferredSize();
int labelBaseline = label.getBaseline(pref.width,
pref.height);
if (labelBaseline >= 0) {
if (baseline == -1) {
baseline = labelBaseline;
}
else if (baseline != labelBaseline) {
sameLabelBaselines = false;
break;
}
}
else {
sameLabelBaselines = false;
break;
}
}
}
else {
sameLabelBaselines = false;
}
}
return sameLabelBaselines;
}