Java8之stream流

例：对list列表中的每个字符后添加字符串

预期结果：“[A-我爱英语, B-我爱英语, C-我爱英语, D-我爱英语]”

    public static void main(String[] args) {
        List<String> list = new ArrayList<>();
        list.add("A");
        list.add("B");
        list.add("C");
        list.add("D");

        // 想在每个list后面加上 “-我爱英语”

        List<String> collect = new ArrayList<>();

        Stream<?> stream = list.stream();
//        stream.map(item -> item + "-我爱英语").forEach(System.out::println);
        collect = stream.map(item -> item + "-我爱英语").collect(Collectors.toList());

        System.out.println(list);
        System.out.println(collect);

    }

输出结果：