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How and when to use Generics

This article is part of our Academy Course titled Advanced Java. This course is designed to help you make the most effective use of Java. It discusses advanced topics, including object creation, concurrency, serialization, reflection and many more. It will guide you through your journey to Java mastery! Check it out here! Table Of Contents 1. Introduction 2. Generics and ...

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How to design Classes and Interfaces

This article is part of our Academy Course titled Advanced Java. This course is designed to help you make the most effective use of Java. It discusses advanced topics, including object creation, concurrency, serialization, reflection and many more. It will guide you through your journey to Java mastery! Check it out here! Table Of Contents 1. Introduction 2. Interfaces 3. ...

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Using methods common to all objects

This article is part of our Academy Course titled Advanced Java. This course is designed to help you make the most effective use of Java. It discusses advanced topics, including object creation, concurrency, serialization, reflection and many more. It will guide you through your journey to Java mastery! Check it out here! Table Of Contents 1. Introduction 2. Methods equals ...

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How to create and destroy objects

This article is part of our Academy Course titled Advanced Java. This course is designed to help you make the most effective use of Java. It discusses advanced topics, including object creation, concurrency, serialization, reflection and many more. It will guide you through your journey to Java mastery! Check it out here! Table Of Contents 1. Introduction 2. Instance Construction ...

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Advanced Java Tutorial

Course Overview Learning the basics of Java is easy. But really delving into the language and studying its more advanced concepts and nuances is what will make you a great Java developer. The web is abundant with “soft”, “cheap”, “low end” Java tutorials, but what it is missing is material to really take you to the next level. This course ...

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Comparing Imperative and Functional Algorithms in Java 8

Mario Fusco’s popular tweet impressively shows what the main difference between imperative and functional approaches to similar algorithms really is: Imperative vs. Functional – Separation of Concerns pic.twitter.com/G2cC6iBkDJ — Mario Fusco (@mariofusco) March 1, 2015 Both algorithms do the same thing, they’re probably equally fast and reasonable. Yet, one of the algorithms is much easier to write and read than ...

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Resource Efficiency vs. Flow Efficiency, Part 2: Effect on People

If you haven’t read Resource Efficiency vs. Flow Efficiency, Part 1: Seeing the System,  I explain there about optimizing for a given person’s work vs. optimizing for features. Some people (including managers) new to agile have questions about working in flow vs. optimizing for a person. The managers ask: How do I know the work won’t take longer if we ...

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Pluggable persistence in Activiti 6

In the past years, we’ve often heard the request (both from community and our customers) on how to swap the persistence logic of Activiti from relational database to something else. When we announced Activiti 6, one of the promises we made was that we would make exactly this possible. People that have dived into the code of the Activiti engine will ...

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AssertJ’s SoftAssertions – do we need them?

One of the rules of writing good unit test is that it should fail for one reason, so unit test should test one logical concept. Sometime it is quite tough to have a single assertion per test. To follow the rule, we may have having multiple assertions per object in a single test. The problem with multiple assertions in a ...

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