java - 如何在 Java 中的二维数组上的循环内创建对象

Question

我有课

public class SimpleData() {
    String continent;
    String country;
    String city;

    public SimpleData(String continent, String country, String city) {
        this.continent = continent;
        this.country = country;
        this.city = city;
    }

}

另一个类从文件中获取数据并返回 2d 对象数组

private Object[][] getDataFromFile(String fileName) {
    return dataLoader.getTableArray(fileLocation, dataSheetName);
}

//will return something like
europe, uk, london
europe, france, paris

在循环遍历二维数组并将对象添加到列表中时，如何创建 SimpleData 对象，以便 SimpleData 的每个对象代表一行数据？

private List<SimpleData> getDataList() {
    Object[][] array = readDataFromFile("myfile");
    List<SimpleData> dataList = new ArrayList<SimpleData>();

    for (int i = 0; i < arr.length; i++) {
        for (int j = 0; j < arr[i].length; j++) {
            //what's the code to generate object with the correct row of data?
        }
    }
    return dataList;
}

Answer 1

而不是

    for (int j = 0; j < arr[i].length; j++) {
        //what's the code to generate object with the correct row of data?
    }

您将需要这个(忽略异常处理):

dataList.add(new SimpleData(array[i][0].toString(), array[i][1].toString(), 
   array[i][2].toString()));