在Java中存储多维数据类型的最佳类型是什么

[英]What is the best type to store multidimensional data type in Java


what is the best type to store data from csv format file, where is 150k records(lines) where each line has 9 columns(fields). After initialize my type with these data i need to do some operations on it, like add record in specified line, or add/change some data in some field. Also i need to compare data between themselves. Thank for help!

什么是从csv格式文件存储数据的最佳类型,其中150k记录(行),其中每行有9列(字段)。在使用这些数据初始化我的类型后,我需要对它进行一些操作,比如在指定行中添加记录,或者在某些字段中添加/更改某些数据。我还需要比较他们自己之间的数据。谢谢你的帮助!

1 个解决方案

#1


3  

The best type to use is an ArrayList of a domain object. The domain object has 9 properties.

要使用的最佳类型是域对象的ArrayList。域对象有9个属性。

In other words: don't make it generic, make it specific for your problem. Then your code will be more readable and type-safety helps you when you create the functionality.

换句话说:不要使它成为通用的,使其具体针对您的问题。然后,您的代码将更具可读性,并且在您创建功能时类型安全可以帮助您。

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