import org.eclipse.jface.preference.StringButtonFieldEditor; //导入依赖的package包/类
@Override
   protected Control createContents(Composite parent) {
setTitle("Iso options");
Composite top = new Composite(parent, SWT.NONE);
fieldEditors = new ArrayList<FieldEditor>();
FieldEditor editor = new FileFieldEditor("mkisofs.path", "MKISOFS Path", true,
	StringButtonFieldEditor.VALIDATE_ON_FOCUS_LOST, top);
fieldEditors.add(editor);

Group optionsGroup = new Group(top, SWT.NONE);
optionsGroup.setText("Iso creations options");

editor = new BooleanFieldEditor("mkisofs.rockridge.use", "Use RockRidge Extension", optionsGroup);
fieldEditors.add(editor);

editor = new BooleanFieldEditor("mkisofs.joliet.use", "Use Joliet Extension", optionsGroup);
fieldEditors.add(editor);

editor = new BooleanFieldEditor("mkisofs.symlinks.follow", "Follow symbolic links", optionsGroup);
fieldEditors.add(editor);

for (FieldEditor fieldEditor : fieldEditors) {
    fieldEditor.setPage(this);
    fieldEditor.setPreferenceStore(getPreferenceStore());
    fieldEditor.load();
}

GridDataFactory.defaultsFor(optionsGroup).grab(true, false).span(3, 1).applyTo(optionsGroup);
GridLayoutFactory.swtDefaults().generateLayout(optionsGroup);
GridLayoutFactory.fillDefaults().numColumns(3).generateLayout(top);
return top;
   }
 

import org.eclipse.jface.preference.StringButtonFieldEditor; //导入依赖的package包/类
/**
 * Creates the field editors. Field editors are abstractions of
 * the common GUI blocks needed to manipulate various types
 * of preferences. Each field editor knows how to save and
 * restore itself.
 */
@Override
public void createFieldEditors()
{
    addField(new FileFieldEditor(PreferenceConstants.P_FILE, "&File preference:", false, StringButtonFieldEditor.VALIDATE_ON_FOCUS_LOST, getFieldEditorParent()));
    addField(new PathEditor(PreferenceConstants.P_PATH2, "&Path preference:", "Chooser Label", getFieldEditorParent()));
    addField(new DirectoryFieldEditor(PreferenceConstants.P_PATH, "&Directory preference:", getFieldEditorParent()));
    addField(new BooleanFieldEditor(PreferenceConstants.P_BOOLEAN, "&An example of a boolean preference", getFieldEditorParent()));
    addField(new RadioGroupFieldEditor(PreferenceConstants.P_CHOICE, "An example of a multiple-choice preference", 1, new String[][] { { "&Choice 1", "choice1" }, { "C&hoice 2", "choice2" } }, getFieldEditorParent()));
    addField(new StringFieldEditor(PreferenceConstants.P_STRING, "A &text preference:", getFieldEditorParent()));
}