Bug 5765 New Class button in empty workspace should be more supportive
User feedback: "Confused how to create my first project" We should be more supportive in the UI for this special case since it is a first time experience with the UI. Therefore when the workbench is empty we should offer to create a new Java project. Minimal solution is to show an info dialog that explains that user should create a project first and offer a button to open the Java project wizard. The same is true for the new package and new interface buttons.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewClassCreationWizardPage.java
layout.minimumWidth= SWTUtil.convertWidthInCharsToPixels(80, composite);
		layout.numColumns= nColumns;		
		composite.setLayout(layout);
		
		createContainerControls(composite, nColumns);	
		createPackageControls(composite, nColumns);	
		createEnclosingTypeControls(composite, nColumns);
				
		createSeparator(composite, nColumns);
		
		createTypeNameControls(composite, nColumns);
		createModifierControls(composite, nColumns);
		
				
		createSuperClassControls(composite, nColumns);
		createSuperInterfacesControls(composite, nColumns);
				
		
		
		createMethodStubSelectionControls(composite, nColumns);
		
		setControl(composite);
		
		setFocus();
		WorkbenchHelp.setHelp(composite, new DialogPageContextComputer(this, IJavaHelpContextIds.NEW_CLASS_WIZARD_PAGE));	
	}
	
	protected void createMethodStubSelectionControls(Composite composite, int nColumns) {
		LayoutUtil.setHorizontalSpan(fMethodStubsButtons.getLabelControl(composite), nColumns);
		DialogField.createEmptySpace(composite);