通过ScopedPreferenceStore在FieldEditorPreferencePage中设置默认值

import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.jface.preference.PreferenceStore;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.plugin.AbstractUIPlugin;

public class MyPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {
    
    public MyPreferencePage() {
        super(GRID);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
    }
    
    @Override
    public void init(IWorkbench workbench) {
    }
    
    @Override
    protected void createFieldEditors() {
        addField(new StringFieldEditor("name", "Name:", getFieldEditorParent()));
        addField(new BooleanFieldEditor("enable", "Enable:", getFieldEditorParent()));
        addField(new IntegerFieldEditor("count", "Count:", getFieldEditorParent()));
        
        // 设置默认值
        getFieldEditor("name").setDefaultValue("John Doe");
        getFieldEditor("enable").setDefaultValue(true);
        getFieldEditor("count").setDefaultValue(10);
    }
}