Intro to Java 7: Collections

Описание

We've seen Java's Class, where we can store pieces of data in an organized manner. But what if we want to store multiple instances of the same type of data? And what if we aren't sure how many instances of this data we'll need?

Java Provides the Array Construct, a structure that stores a fixed number of the same type of data. The API provides a series of collections, including the map, which certain values can be accessed via a key.