Apache poi center align
<p>I am trying to align text. However, the text is not aligned.</p>

<pre><code>Cell lastCell = lastCell = row.createCell(cellNumber++);
if (value != null) {
    lastCell.setCellValue(value);
}
CellStyle cellStyle = lastCell.getCellStyle();
cellStyle.setAlignment(CellStyle.ALIGN_RIGHT);
lastCell.setCellStyle(cellStyle);
</code></pre>