Hallo,
ja das hat super geklappt! 
Ich habe jetzt die Schritte weiterverfolgt im Tutorial.
Ich habe bis jetz dies alles gemacht:
Now we need a project to store our own source code. In the main toolbar, click on the New Java Project button, or click on the link below. Enter HelloWorldSWT for the project name, then click Finish.
Since our project requires SWT, we need to specify this in the project properties. Right-click on the project and select Properties.
In the Java Build Path page open the Projects tab, add the org.eclipse.swt project, then click OK.
The next step is to create a new class. In the main toolbar, click on the New Java Class button (or the link below). If not already specified, select HelloWorldSWT/src as the source folder. Enter HelloWorldSWT for the class name and select the checkbox to create the main() method, then click Finish.
The Java editor will automatically open showing your new class.
In the Java editor, enter the following Java code in the main() method:
Display display = new Display();
Shell shell = new Shell(display);
shell.setText(„Hello world!“);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
You will get compile errors. Right click in the Java editor and select Source > Organize Imports, then save your changes.
Bekomme aber beim kompilieren noch folgende Fehlermeldung:
Exception in thread „main“ java.lang.Error: Unresolved compilation problems:
Display cannot be resolved to a type
Display cannot be resolved to a type
Shell cannot be resolved to a type
Shell cannot be resolved to a type
at HelloWolrdSWT.main(HelloWolrdSWT.java:10)
Anscheinend kennt er Dispaly und Shell immer noch nicht…
Hättest du eine Ahnung was ich falsch machen könnte? 
