text: public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1) {ValueEval ve0;ValueEval ve1;try {ve0 = OperandResolver.getSingleValue(arg0, srcRowIndex, srcColumnIndex);ve1 = OperandResolver.getSingleValue(arg1, srcRowIndex, srcColumnIndex);} catch (EvaluationException e) {return e.getErrorEval();}StringBuilder sb = new StringBuilder();sb.append(getText(ve0));sb.append(getText(ve1));return new StringEval(sb.toString());}