Data structures and Java collections
![data structures and java apis](https://www.lavivienpost.com/wp-content/uploads/2021/02/data-structures-and-java-apis2-250x150.jpg)
Java collections are Java built-in libraries provided by JDK. You don’t have to implement your own data structures classes and methods. You can directly call the library. Before we list the Java Collections, the original data structures are introduced. There are arrays, linked lists, stacks, binary trees, hash tables, and …