I’ve focused on two data structure categories, Java arrays and linked lists, which are the basis of more complex data structures such as stacks, queues, trees, graphs, dictionaries/maps, and sets.

Get an overview of data structures and algorithms and how they work together in your Java programs ...

The latest Neo4j open-source NoSQL graph database adds built-in ETL, new functionality for easily mapping tabular data into Neo4j from CSV files, and a faster data loader, among other changes.