import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.*;
public class ArrowButtonExample {    
    Display d;
    Shell s;
    ArrowButtonExample()    {
        d = new Display();
        s = new Shell(d);
        s.setSize(250,250);
        s.setImage(new Image(d, "c:\\icons\\JavaCup.ico"));
        s.setText("A Button Example");
        final Button b1 = new Button(s, SWT.ARROW | SWT.UP);
        b1.setBounds(100,55,20,15);
        final Button b2 = new Button(s, SWT.ARROW | SWT.DOWN);
        b2.setBounds(100,70,20,15);
        final Text t1 = new Text(s, SWT.BORDER | SWT.SINGLE | SWT.CENTER);
        t1.setBounds(80, 55, 20, 30);
        t1.setText("1");
        t1.selectAll();
        b1.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                int n = new Integer(t1.getText()).intValue();
                n++;
                t1.setText(new Integer(n).toString());
                t1.selectAll();
            }
        });
        b2.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                int n = new Integer(t1.getText()).intValue();
                n--;
                t1.setText(new Integer(n).toString());
                t1.selectAll();
            }
        });
        s.open();
        while(!s.isDisposed()){
            if(!d.readAndDispatch())
                d.sleep();
        }
        d.dispose();
    }
}