从Java中的对象数组中检索分配给特定类成员的值的数组 [英] Retrieve an array of values assigned to a particular class member from an array of objects in java

问题描述

比方说，我有一组复杂的数据类型对象.例如:FullName[100].每个FullName对象都有2个类成员变量:String FirstName和String LastName.现在，从这个FullName对象数组中，我想检索一个String FirstNames[]数组.

Let's say, I have an array of complex data type objects. For example: FullName[100]. Each FullName object has has 2 class member variables: String FirstName and String LastName. Now, from this array of FullName objects, I want to retrieve an array of String FirstNames[].

如果没有广泛的for循环应用程序，该怎么办?

How can I do this without the extensive for loop application?

推荐答案

您可以尝试看看使用Java进行功能编程，并从其中一个库中应用map函数.

You can try to take a look at Functional Programming in Java and apply map function from one of the libraries.

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