Org Eclipse Swt Widgets Java by API

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Decorations;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
  public static void main(String[] a) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Sash One");
    // The SWT.BORDER style
    Decorations d = new Decorations(shell, SWT.MAX);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    Label l = new Label(d, SWT.CENTER);
    l.setText("SWT.MAX");
    
    d.setBounds(20,20,100,100);
    
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}