java - How to set the line spacing in a JtextPane? -

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first of all, set jtextpane this:

htmleditorkit editorkit = new htmleditorkit(); htmldocument document = (htmldocument) editorkit.createdefaultdocument(); jtextpane textpane = new jtextpane(); textpane.setcontenttype("text/html"); textpane.setdocument(document);

and want set line spacing in jtextpane , idea,but can't work:

simpleattributeset aset = new simpleattributeset(); styleconstants.setlinespacing(aset, 50); textpane.setparagraphattributes(aset, false);

i wrong?

when call textpane.setparagraphattributes(aset, false); tries apply line spacing selection nothing selected

call way

document.setparagraphattributes(0, document.getlength(), attr, replace);

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