使用Java流创建具有动态值的员工列表 [英] Create List of Employees with dynamic values using Java streams

问题描述

我有一个用例，其中我必须创建ID递增的默认雇员列表，

I have use case where I have to create List of default employees with incrementing id,

List<Employee> employeeList = new ArrayList<>();
int count = 0;
while (count++ <= 100){
    Employee employee = new Employee(count, "a"+count);
    employeeList.add(employee);
}

我没有可以使用流的任何收藏.我们可以通过功能方式做到吗?

I don't have any collection on which I could use stream. Can we do it in functional way?

推荐答案

您可以使用

You can use IntStream with rangeClosed(int startInclusive, int endInclusive) to generate the count

List<Employee> employeeList = IntStream.rangeClosed(0,100)
                                       .boxed()
                                       .map(count-> new Employee(count, "a"+count))
                                       .collect(Collectors.toList());

或者您可以使用

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