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  • stream的filter用法

    Person p1 = new Person("张三", new BigDecimal("23.0"));
    Person p2 = new Person("王五", new BigDecimal("64.0"));
    Person p3 = new Person("李四", new BigDecimal("75.0"));
    Person p4 = new Person("王五", new BigDecimal("50.0"));
    Person p5 = new Person("赵六", new BigDecimal("15.0"));
    List<Person> pList = new ArrayList<>();
    pList.add(p1);
    pList.add(p2);
    pList.add(p4);
    pList.add(p3);
    pList.add(p5);
    System.out.println("未做过滤:" + pList);
    List<Person> collect = pList.stream().filter(item -> item.getSalary().compareTo(new BigDecimal("50")) >= 0).collect(Collectors.toList());
    System.out.println("做了过滤:" + collect);

    打印结果:
    未做过滤:[{name='张三', salary=23.0}, {name='王五', salary=64.0}, {name='王五', salary=50.0}, {name='李四', salary=75.0}, {name='赵六', salary=15.0}]
    做了过滤:[{name='王五', salary=64.0}, {name='王五', salary=50.0}, {name='李四', salary=75.0}
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  • 原文地址:https://www.cnblogs.com/lu51211314/p/9401160.html
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