我正在尝试创建一些与它从文件中读取的行数相同的 Employee 对象

Question

行列表私有 ArrayList 行；

list of Employee objects
private ArrayList<Employee> employeeList;

the file information of employee
private FileReader file;

public HumanResource(String fileName)
{
    file = new FileReader(fileName);
    ArrayList<Employee> employeeList = new ArrayList<>();
    for (int k = 0; k < file.getLines().size(); k++)
    {
       employeeList.add(new Employee (file.getLines().get(k)));
       
    }
}

这是我到目前为止的想法，但我不知道这是否正确？

Answer 1

一个更好的方法是使用 BufferReader 并且你可以阅读每一行。

try(BufferedReader br = new BufferedReader(new FileReader(fileName))){
  
  string st;
  ArrayList<Employee> employeeList = new ArrayList<>();
  while ((st = br.readLine()) != null)
    employeeList.add(new Employee(st));
  }
}

请注意，我正在使用 try{} 扭曲 bufferedReader 以使其自动关闭

我正在尝试创建一些与它从文件中读取的行数相同的 Employee 对象

I am trying to create a number of Employee objects same as the number of line it reads from the file

java

bluej