Classes in Java: Creating & Using Anonymous Classes
Java SE 15
| Intermediate
- 7 videos | 59m 45s
- Includes Assessment
- Earns a Badge
Anonymous classes in Java allow you to define code that use-and-throw. These are classes where you define and instantiate a class simultaneously and which are anonymous, i.e., do not have a name. These are perfect in scenarios where you want a class that implements a certain interface but will not be reused beyond where it is defined and accessed. Through this course, learn to create and use anonymous classes, recognizing how they are nested, inner, and unnamed classes that either implement an interface or derive from a base class. As you advance, explore some common use cases for anonymous classes. When you're finished with this course, you'll be able to create and use anonymous classes in Java correctly, with the correct syntax, and for the proper use case.
WHAT YOU WILL LEARN
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discover the key concepts covered in this course
define and use anonymous classes
recognize how anonymous instances are objects
illustrate the finer points of anonymous classes -
implement the built-in interfaces, Comparator and Runnable, with anonymous classes
perform filter operations with local and anonymous classes
summarize the key concepts covered in this course
IN THIS COURSE
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2m 3s
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10m 32s
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3. Defining Why Anonymous Class Instances Are Objects9m 10s
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4. Exploring Nuances of Anonymous Classes in Java10m 20s
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5. Implementing Interfaces with Anonymous Classes in Java13m 2sIn this video, you'll learn how to implement the built-in interfaces, Comparator and Runnable, with anonymous classes. You'll discover these single method interfaces have exactly 1 method for which you need to provide an implementation. These are often implemented using anonymous classes, which will be demonstrated here. Also, observe that we've printed out the contents of the list before sorting as well as after sorting. FREE ACCESS
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6. Using Local and Anonymous Classes to Filter Data in Java13m 3sIn this video, you'll learn how to make your code more compact, readable, and maintainable by using Lambda expressions. You'll begin with a simple scenario that doesn't use lambdas. Then you'll iteratively improve the solution until you get to using lambda expressions. FREE ACCESS
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7. Course Summary1m 36s
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