java lambda list转string
Listlist1=new ArrayList<>(); list1.add("zhou"); list1.add("zhou"); String aa=list1.stream(). collect(Collectors.joining(",", "[", "]"));

java lambda list转string
Listlist1=new ArrayList<>(); list1.add("zhou"); list1.add("zhou"); String aa=list1.stream(). collect(Collectors.joining(",", "[", "]"));