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GridLayout with All Options

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.Composite; public class Ch6GridLayoutAllOptionsComposite extends Composite {   public Ch6GridLayoutAllOptionsComposite(Composite parent) {     super(parent, SWT.NONE);     int[] fillStyles = { SWT.NONE, GridData.FILL_HORIZONTAL,         GridData.FILL_VERTICAL, GridData.FILL_BOTH };     int[] alignStyles = { SWT.NONE, GridData.HORIZONTAL_ALIGN_BEGINNING,         GridData.HORIZONTAL_ALIGN_END,         GridData.HORIZONTAL_ALIGN_CENTER,         GridData.HORIZONTAL_ALIGN_FILL,         GridData.VERTICAL_ALIGN_BEGINNING, GridData.VERTICAL_ALIGN_END,         GridData.VERTICAL_ALIGN_CENTER, GridData.VERTICAL_ALIGN_FILL };     GridLayout layout = new GridLayout(fillStyles.length, false);     setLayout(layout);     int count = 0;     for (int i = 0; i < alignStyles.length; ++i) {       for (int j = 0; j < fillStyles.length; ++j) {         Button button = new Button(this, SWT.NONE);         button.setText("Cell " + count++);         button.setLayoutData(new GridData(fillStyles[j]             | alignStyles[i]));       }     }   } }