com.aspose.words

Example:

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// Get specific style from the document to apply it to an SDT
Style quoteStyle = doc.getStyles().getByStyleIdentifier(StyleIdentifier.QUOTE);
StructuredDocumentTag sdtPlainText = new StructuredDocumentTag(doc, SdtType.PLAIN_TEXT, MarkupLevel.INLINE);
sdtPlainText.setStyle(quoteStyle);

StructuredDocumentTag sdtRichText = new StructuredDocumentTag(doc, SdtType.RICH_TEXT, MarkupLevel.INLINE);
// Second method to apply specific style to an SDT control
sdtRichText.setStyleName("Quote");

// Insert content controls into the document
builder.insertNode(sdtPlainText);
builder.insertNode(sdtRichText);

// We can get a collection of StructuredDocumentTags by looking for the document's child nodes of this NodeType
Assert.assertEquals(sdtPlainText.getNodeType(), NodeType.STRUCTURED_DOCUMENT_TAG);

NodeCollection tags = doc.getChildNodes(NodeType.STRUCTURED_DOCUMENT_TAG, true);

for (StructuredDocumentTag sdt : (Iterable<StructuredDocumentTag>) tags) {
    // If style was not defined before, style should be "Default Paragraph Font"
    Assert.assertEquals(StyleIdentifier.QUOTE, sdt.getStyle().getStyleIdentifier());
    Assert.assertEquals("Quote", sdt.getStyleName());
}