I have a map with strings as values. I want to sort it firstly by length, and if length of the strings is the same, i want to sort it alphabetic. I wrote those code :
String out=outMap.values().stream().sorted(Comparator.comparing(e -> e.length()).thenComparing()...).collect(Collectors.joining());
The problem is, when i am writing thenComparing, I couldn't use
e.length() anymore. How can i fix it?
Map<Character, String> . I want to sort the strings and make one string in output by concat all of them.