Answers for "how to convert list of map to list in java 8"

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list to map of list java 8

Map<String,Set<String>> map =  list.stream().
           collect(Collectors.groupingBy(
                    Student::getName,
                    Collectors.mapping(e->getNum(e.getAddr()), Collectors.toSet())
                ));

   System.out.println("Map : "+map);

Posted by: Guest on March-08-2021

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