遍历map
map.forEach((k, v) -> System.out.println("key:value = " + k + ":" + v));
map转list
map.entrySet().stream().map(e -> new Person(e.getKey(),e.getValue())).collect(Collectors.toList());
list转map
Map<Integer, String> result1 = list.stream().collect( Collectors.toMap(Hosting::getId, Hosting::getName));
java8实现map遍历,map转list,list转map
原文作者:ayoungyeah
原文地址: https://blog.csdn.net/ayoungyeah/article/details/91491680
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原文地址: https://blog.csdn.net/ayoungyeah/article/details/91491680
本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。