Question

我目前需要将CSV文件中的数据作为对象导入到数组中。然而，数据并非都是相同的类型，并且一行数据的格式如“Tom，Jones，95846,657.45”。我能够解析文件但似乎无法弄清楚如何将这些数据存储到数组中。我将需要根据姓名和号码等不同要求对这些数据进行排序。

import java.io.*;
import java.util.*;


public class People {

public static void main(String[] args) {
    File file = new File("People.csv");

    People peopleArr[] = new People[100];

    try{
        Scanner inputFile = new Scanner(file);
        inputFile.useDelimiter(",");

        while(inputFile.hasNext()){
     // Store the data into array

        }
        inputFile.close();

    }catch (FileNotFoundException e){
        System.out.println("Check file");
    }

}

}

Answer 1

也许像这样：

public static People[] readPeople(File file) {
    List<People> people = new ArrayList<>(100);

    try (Scanner inputFile = new Scanner(file)) {
        inputFile.useDelimiter(",");

        while (inputFile.hasNext()) {
            People obj = new People();
            // e.g. line is equals to John,Done
            // obj.setFirstName(inputFile.next());
            // obj.setLastName(inputFile.next());
            people.add(obj);
        }
    } catch(FileNotFoundException e) {
        System.out.println("Check file");
    }

    return people.toArray(new People[people.size()]);
}

如何将CSV数据作为对象导入数组？

1 个答案: