【Java1.8特性】stream流常用方法

 List collect = organizations.stream().filter(c -> "wer".equals(c.getName())).collect(Collectors.toList());

 List collect1 = organizations.stream().filter(c -> {
        if ("234".equals(c.getName()) && "123".equals(c.getCode())) {
            return true;
        }
        return false;
    }).collect(Collectors.toList());

 List collect2 = organizations.stream().map(Organization::getId).collect(Collectors.toList());

    List collect3 = organizations.stream().distinct().collect(Collectors.toList());

  organizations.stream().forEach(c -> c.setName("123"));

   organizations.stream().forEach(c -> {
        if ("123".equals(c.getName())) {
            c.setName("456");
        }
    });

    List collect4 = organizations.stream().limit(10).collect(Collectors.toList());

    long count = organizations.stream().count();
   
    int size = organizations.size();

anyMatch 表示，判断的条件里，任意一个元素成功，返回true

    boolean b = organizations.stream().anyMatch(c -> "123".equals(c.getName())); 

allMatch表示，判断条件里的元素，所有的都是，返回true

 boolean b1 = organizations.stream().allMatch(c -> "123".equals(c.getName()));

noneMatch跟allMatch相反，判断条件里的元素，所有的都不是，返回true

 boolean b2 = organizations.stream().noneMatch(c -> "123".equals(c.getName()));