使用map进行类型转换
List list = Arrays.asList("a","ab","abc");
list.stream()
.map(String.class::cast) // cast to String
.map(String::getBytes) // call getBytes on every element
.forEach(System.out::println);
List list = Arrays.asList("a","ab","abc");
list.stream()
.map(String.class::cast) // cast to String
.map(String::getBytes) // call getBytes on every element
.forEach(System.out::println);