import java.util.List;
import java.util.stream.Stream;
public class CountDemo {
public static void main(String[] args) {
List<Employee> list = Employee.getEmpList(); // 获取公共类的测试数据
Stream<Employee> stream = list.stream(); // 获取集合流对象
// 判断员工是否有的年龄大于等于40
stream = stream.filter(e -> e.getSex().equals("男"));
System.out.println("男员工的人数为:" + stream.count()); // 输出结果
}
}
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