Converting String to char array without using String function

public class ConvertStringToCharArrayExample{

public static void main(String []args)
{
String myString = "Hello World!";
System.out.println(myString);
Field value;
try {
value = String.class.getDeclaredField("value");
value.setAccessible(true);
char[] values = (char[])value.get(myString);

for(char val:values)

{

System.out.println(val);

}

 
   } catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
}catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}

}

}

Plugin project toolbar customization

How to add customizable toolbar in eclipse RCP project

For creating the toolbar dynamic you need to provide a ContributionProvider extension point in the plugin.xml file, lets create a extension point which will look like..

<extension
            point="org.eclipse.ui.menus">
         <menuContribution
               class="com.demo.dynamic.toolbar.ToolbarContributionFactory"
               locationURI="toolbar:org.eclipse.ui.main.toolbar">
         </menuContribution>
</extension>

you can directly copy paste this extension or you can create by your own..

now create this toolbar contribution factory at the declared location

that class should look like

public class ToolbarContributionFactory extends ExtensionContributionFactory
{

    @Override
    public void createContributionItems( IServiceLocator serviceLocator, IContributionRoot additions )
    {
        // list all the elements here for which you want to create toolbar buttons
        List elementList = ElementHelper.getInstance().getSelectedElements();

        ToolBarManager toolBarManager = new ToolBarManager();
             for ( Object object : elementList )
            {
                   CommandContributionItemParameter p = new CommandContributionItemParameter(                                                                           serviceLocator, "", "com.eclipse.ui.commands.addItem",                                                                               SWT.PUSH );

                    p.label = "Test Item";
                    p.icon = Activator.getImageDescriptor("path of the image file");
                    CommandContributionItem item = new CommandContributionItem( p );
                    item.setVisible( true );
                    toolBarManager.add( item );
             }
    }
}

so in this way we can write custom java code for populating dynamic toolbar. and when you think toolbar should get updated then call below method.

public class UpdateToolbarHelper
{
    public static void run()
    {
        WorkbenchPage page = (WorkbenchPage)PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        IActionBars2 bars = (IActionBars2) page.getActionBars();
        ICoolBarManager coolBarManager = bars.getCoolBarManager();
        WorkbenchWindow window = (WorkbenchWindow)PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        window.fillActionBars( ActionBarAdvisor.FILL_COOL_BAR );
    }
}

Have a happy coding......