Java Programming Exercises: Volume Two: Java Standard Library

Java’s standard library is broad; knowing how to use it well comes from practice. In Java Programming Exercises: Volume Two: Java Standard Library, Christian Ullenboom turns that practice into a series of programming challenges, with commented solutions that explain the decisions behind the code—not just the final answer.

The exercises range across everyday Java work, from processing strings and dates to coordinating threads, handling collections, building streams and working with databases and other data formats. The pirate Captain CiaoCiao adds a thread of personality to a book designed for serious, hands-on skill building.

Practice across the Java standard libraries

Thirteen chapters cover advanced string processing, mathematics, locale and date/time, concurrent programming, data structures and algorithms, the Stream API, files and directories, input/output streams, network programming, XML and JSON, JDBC, operating-system access, and reflection, annotations and JavaBeans.

That breadth helps put individual library features in context. Readers can work through focused problems in one area, then move on to challenges that call for choosing and combining different Java tools.

Problems first, carefully explained solutions next

The book is built around tasks at different levels, followed by extensively commented suggested solutions. Working on a problem before consulting its solution gives readers room to test their own approach; the explanations then offer a way to compare choices and examine Java conventions, good object-oriented practices, design patterns and clean code.

The exercises touch object-oriented, imperative and functional programming. Attention to naming, structure and design makes the material about more than getting a program to run: it also encourages consideration of how readable and maintainable that solution is.

For learners who want to put Java knowledge to work

Ullenboom presents this as an exercise book, not a conventional textbook, and recommends pairing its tasks with a preferred learning text. It is aimed at a broad range of Java learners and practitioners, including computer science students, IT specialists, developers and job applicants. Readers new to Java and more advanced programmers can choose challenges suited to their experience.

For a study session, a skills refresh or a deeper look at Java SE libraries, this volume offers a substantial collection of problems to solve—and reasoned solutions to learn from.