// Hello World in BeanShell
import com.sun.star.uno.UnoRuntime;
import com.sun.star.text.XTextDocument;
import com.sun.star.text.XText;
import com.sun.star.text.XTextRange;

// get the document from the scripting context which is made available to all 
// scripts
oDoc = XSCRIPTCONTEXT.getDocument();
//get the XTextDocument interface
xTextDoc = (XTextDocument) UnoRuntime.queryInterface(XTextDocument.class,oDoc);
//get the XText interface
xText = xTextDoc.getText();
// get an (empty) XTextRange at the end of the document
xTextRange = xText.getEnd();
// set the string
xTextRange.setString( "Hello World (in BeanShell)" );