The author discusses his results of measuring the performance degradation of Java programs while using various data abstraction features of the language.

The abstract keyword can be used in different ways for writing java classes to implement abstraction. We can have: 1.An abstract class with one or more abstract method (s) ...

Java's I/O streams provide standardized ways to read and write data. Any object representing a mutable data source in Java exposes methods for reading and writing its data as a stream.

Tools like Grails, Struts, Java DB and MongoDB provide essential abstractions, interfaces and functionalities that abstract the complexities of database management.

Learn all about array and list data structures in Java, and the algorithms you can use to search and sort the data they contain ...

Get started modeling entities and relationships for Java data persistence, using an example application based on Java 21 with Hibernate 6.3.