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
     
       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
      
        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}