Java Collection source code (1): Collection overall framework, java source code

Java Collection source code (1): Collection overall framework, java source code

Set is one of the most common core APIs in Java. This article describes the general framework of the set. First, let's look at the two images.

It can be seen that the general architecture of the Java set is composed:

1. Collection interface: this interface has two sub-interfaces: Set interface and List interface.

2. Map Interface

The general structure and hierarchy of the Java Collection framework are clearly known. The following figure details the relationship between the collection frameworks and Iterator and Comparator based on Think In Java.

The next article will introduce several common classes based on the two graphs, focusing on common collections such as ArrayList, sorted list, HashSet, and HashMap.

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