Course: Generics in Java
duration: 6 hours |
Language: English (US) |
access duration: 90 days |
Incompany available

Details
In this course, you will learn about the advantages of using generics in Java to write maintainable and reusable code. You will explore how to define classes with generic type parameters and how to use them as types for member variables, input arguments to methods, and return values from methods. You will also learn how to implement generic methods where the generic type parameter is associated with the method rather than the class itself. The course will cover bounded type parameters and wildcards in Java, including unbounded and bounded type parameters, and the use of wildcards. You will recognize the applications of unbounded, upper-bounded, and lower-bounded wildcards and learn what's meant by 'wildcard capture' and 'type erasure.'
Result
By the end of the course, you will have a solid foundation in defining and working with generic classes and methods in Java, and you will be able to correctly identify scenarios for using bounded type parameters and wildcards and implement them correctly.
Prerequisites
No formal prerequisites. Prior knowledge of Java is recommended.
Target audience
Software Developer, Web Developer
Content
Generics in Java
Generics in Java: Creating Classes and Methods Using Generics
Generics is a handy tool in Java that greatly increases the maintainability of your code by allowing you to reuse code, using the same class or method with different types of data. Furthermore, generics also convert runtime checks to compile-time checks, making your code less error-prone. In this course, learn how to use generics in Java to write reusable and maintainable code, exploring why generic code has several advantages over non-generic code. Get hands-on practice with creating and defining classes with generic type parameters. Investigate how these generic types can be used as types for member variables, input arguments to methods, and return values from methods. Moving along, implement generic methods where the generic type parameter is associated with the method rather than the class itself. When you're finished, you'll have a solid foundation in defining and working with generic classes and methods in Java.
Generics in Java: Bounded Type Parameters & Wildcards
In Java, bounded type parameters and wildcards offer certain flexibility and disadvantages. Recognizing these will help you decide when and how to use these tools to your advantage when writing code. Use this course to get to grips with what's meant by unbounded and bounded type parameters, explore the use of wildcards in Java, and recognize the applications of unbounded, upper-bounded, and lower-bounded wildcards. As you advance, investigate what's meant by 'wildcard capture' and 'type erasure.' When you're finished, you'll be able to correctly identify scenarios for using bounded type parameters and wildcards and implement them correctly.
Course options
We offer several optional training products to enhance your learning experience. If you are planning to use our training course in preperation for an official exam then whe highly recommend using these optional training products to ensure an optimal learning experience. Sometimes there is only a practice exam or/and practice lab available.
Optional practice exam (trial exam)
To supplement this training course you may add a special practice exam. This practice exam comprises a number of trial exams which are very similar to the real exam, both in terms of form and content. This is the ultimate way to test whether you are ready for the exam.
Optional practice lab
To supplement this training course you may add a special practice lab. You perform the tasks on real hardware and/or software applicable to your Lab. The labs are fully hosted in our cloud. The only thing you need to use our practice labs is a web browser. In the LiveLab environment you will find exercises which you can start immediately. The lab enviromentconsist of complete networks containing for example, clients, servers,etc. This is the ultimate way to gain extensive hands-on experience.
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