SwtApp.java

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class SwtApp {

	public SwtApp(final Display display) {
		final Shell shell = new Shell(display);

		shell.addPaintListener(new PaintListener(){ 
			public void paintControl(PaintEvent e){ 		
				e.gc.setBackground(display.getSystemColor(SWT.COLOR_RED)); 
				e.gc.fillOval(10,10,100,100); 
				
				Font font = new Font(display,"Arial",22,SWT.BOLD); 
				e.gc.setFont(font);
				e.gc.drawText("Hello",1,30, SWT.DRAW_TRANSPARENT);
				font.dispose();
				
				e.gc.setBackground(display.getSystemColor(SWT.COLOR_CYAN)); 
				e.gc.fillOval(40,40,100,100); 		
				
				font = new Font(display,"Helvetica",22,SWT.ITALIC); 
				e.gc.setFont(font);
				e.gc.drawText("Shoes!",30,60, SWT.DRAW_TRANSPARENT);
				font.dispose();
			} 
		}); 

		shell.setSize(165, 185);
		shell.open();

		
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
	}

	public static void main(String[] args) {
		Display display = new Display();
		new SwtApp(display);
		display.dispose();
	}
}