import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class MainClass {
public static void main(String[] a) {
Display display = new Display();
Shell shell = new Shell(display);
GridLayout layout = new GridLayout();
layout.numColumns = 2;
layout.makeColumnsEqualWidth = true;
shell.setLayout(layout);
GridData data = new GridData(GridData.FILL_BOTH);
Button one = new Button(shell, SWT.PUSH);
one.setText("one");
one.setLayoutData(data);
data = new GridData(GridData.FILL_BOTH);
Button two = new Button(shell, SWT.PUSH);
two.setText("two");
two.setLayoutData(data);
data = new GridData(GridData.FILL_BOTH);
Button three = new Button(shell, SWT.PUSH);
three.setText("three");
three.setLayoutData(data);
data = new GridData(GridData.FILL_BOTH);
Button four = new Button(shell, SWT.PUSH);
four.setText("four");
four.setLayoutData(data);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}