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SWT Event Handling with Displays

The readAndDispatch reads events from the operating system's event queue and then dispatches them appropriately. import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class SWTEventHandlingDisplay {   public static void main(String[] args) {     Display display = new Display();     Shell shell = new Shell(display);     shell.setText("Hello, world!");     shell.open();     while(! shell.isDisposed()) { // Event loop.         if(! display.readAndDispatch())           display.sleep();     }     display.dispose();   } }