private int append(int repetitions) {
            String prefix="hello";
            int totalSize=0;
            for (int i=0; i<repetitions; i++) {
                String full=appendStrings(prefix, String.valueOf(i));
                totalSize+=full.length();
            }
            return totalSize;
        }
Compares alternative ways of appending strings

@author bratseth
vespajlib/src/test/java/com/yahoo/text/StringAppendMicroBenchmarkTest.java