List<String> flatList = nestedList.stream() .flatMap(List::stream) .collect(Collectors.toList()); System.out.println("Flat List: "+ flatList); 輸出結(jié)果: Flat List: [apple, banana, cherry, date, elderberry, fig, grape] 通過(guò)flatMap 方法,我們可以將嵌套的列表展平為一個(gè)包含所有元素的單一列...
www.dbjr.com.cn/program/332294x...htm 2025-6-7