In this episode, Donn talks about Item #20 in the Effective Java book (third series) by Joshua Bloch. He discusses why you should think about using interfaces over abstract classes, how they can add mixin like behavior to retrofit existing classes with new behavior, default methods, skeleton implementations and more.
Enjoy.
In this mini-fragment episode, Donn talks about Item #9 of the Effective Java (Third Edition) book – Prefer try with resources to try finally.
Please note, this episode references the third edition of the Effective Java book that recently came out. Previously we were doing the entire series on version 2, but we are now upgrading to version 3 of the book. We will not be re-doing any of the existing lessons, but if one was inserted in the mix, then we will do that lesson.
Listen on:
In this mini-fragment episode, Donn talks about Item #5 of the Effective Java (Third Edition) book – Prefer Dependency Injection to Hardwiring Resources.
Please note, this episode references the third edition of the Effective Java book that recently came out. Previously we were doing the entire series on version 2, but we are now upgrading to version 3 of the book. We will not be re-doing any of the existing lessons, but if one was inserted in the mix, then we will do that lesson.
This is the case with Item #5. We did Item #5 previously for v2 of the book, but v3 introduced a new Item 5 (and bumped the previous Item 5 up to 6).
TLDR; Item #5 is new in the third edition of the Effective Java book. So listen closely. :)
Listen on:
In this episode, Donn talks about Item #17 from the Effective Java book: Design and Document for inheritance or else prohibit it. Learn how you should be documenting your code that is built for inheritance when you should not call overridable methods and much more.
In this mini-Fragment episode, Donn talks about Item #16 of the Effective Java series – Favor Composition over Inheritance. You’ll learn why using inheritance is not always a great idea and how you can use composition in place of it to make your code more anti-fragile, resilient and clean.
In this mini-Fragment episode, Donn talks about Item #15 of the Effective Java series – Minimize Mutability. You’ll learn what mutable and immutable objects are, how and why immutability is a good thing and how you can implement it.
In this mini-Fragment episode, Donn talks about Item #14 of the Effective Java series – In public classes, use accessor methods, not public fields. You’ll learn why it’s important to use accessors in your public classes and some caveats to this rule.
For example, you may decide that the class is a private inner class or package private. Donn digs into the details in this week’s episode. This is a glimpse of what’s to come in Item #15, which is coming soon…
In this mini-Fragment episode, Donn talks about Item #13 of the Effective Java series – Minimize the accessibility of classes and members. You’ll learn why it’s important to limit the access on your public API, how it can help you with development and performance. You’ll also learn how changing a public API can affect the consumers of your API, for good and bad.
In this mini-Fragment episode, Donn talks about Item #12 of the Effective Java series – Consider Implementing Comparable. You’ll learn about how you can use the Comparable interface to give your code the extra sorting boost it needs. Work with Arrays.sort(), Collections utilities and even sorted data structures. Donn breaks down what it takes to implement the compareTo method of the Comparable interface.
In this mini-Fragment, Donn talks about Item #11 of the Effective Java series – Override clone Judiciously. You’ll learn about the extralinguistic behavior of clone and the Cloneable interface. Clone and Cloneable are very special, and this episode helps explain the nuances.