java - How to concatenate/combine two attributed strings? -

as title states, how 1 concatenate 2 attributed strings?

the attributedstrings not contain concat method, , of course short-cut of concat ( + operator on strings) not work either.

using ctrl+f search "concat" on attributedstring javadocs... javadocs don't mention concat, nor appear mention means combine 2 attributed strings (https://docs.oracle.com/javase/7/docs/api/java/text/attributedstring.html).

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specifics on end desire:

let's have 2 objects each 2 strings. (following json format)

{     "term" : "1s",     "superscript" : "1" }, {     "term" : "1s",     "superscript" : "2" } 

what need combine of these terms , superscripts in following, ordered format:

term+superscript+term+superscript

however, superscripts must super scripts (hence use of attributedstrings).

sorry far know, there no easy way it. can following:

attributedcharacteriterator aci1 = attributedstring1.getiterator(); attributedcharacteriterator aci2 = attributedstring2.getiterator();  stringbuilder sb = new stringbuilder();  char ch = aci1.current(); while( ch != characteriterator.done) {     sb.append( ch);     ch = aci1.next(); }  ch = aci2.current(); while( ch != characteriterator.done) {     sb.append( ch);     ch = aci2.next(); }  attributedstring combined = new attributedstring( sb.tostring()); combined.addattributes( aci1.getattributes(), 0, aci1.getendindex()); combined.addattributes( aci2.getattributes(), aci1.getendindex(), aci1.getendindex() + aci2.getendindex());