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import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Monitor;
import org.eclipse.swt.widgets.Shell;
public class ShellCenter {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setSize(200, 200);
Monitor primary = display.getPrimaryMonitor();
Rectangle bounds = primary.getBounds();
Rectangle rect = shell.getBounds();
int x = bounds.x + (bounds.width - rect.width) / 2;
int y = bounds.y + (bounds.height - rect.height) / 2;
shell.setLocation(x, y);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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