Java SE 11: Inheritance, Lists, Inference, & Lambda Expressions
Java
| Beginner
- 12 videos | 1h 56s
- Includes Assessment
- Earns a Badge
Explore the use of inheritance through interfaces and interface casting. During this course, you will explore the functions of key Java elements. Key subject areas include the following: how to override the toString method, how to understand the Multiple Inheritance Dilemma, distinguish between interfaces and abstract classes and implement a Class Interface. Other topics include how to cast to an interface reference to allow object method access; how to study the array list class, and store objects with an array list. You'll also learn how to concatenate two arrays into a single ArrayList, convert an array to an ArrayList, and use the Stack collection, to push and pop objects. As you progress, you will observe how to employ the local variable type inference feature, to declare local variables, using var. Conclude by writing a simple lambda expression that consumes a predicate.
WHAT YOU WILL LEARN
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Override the tostring method of the object class
Distinguish between interfaces and abstract classes
Implement an interface in a class
Cast to an interface reference to allow access to an object method
Describe the benefits of the arraylist class
Use an arraylist to store objects -
Concatenate two arrays into a single arraylist
Convert an array to an arraylist
Use the stack collection to push and pop objects
Use the local variable type inference feature to declare local variables using var
Write a simple lambda expression that consumes a predicate
Display the contents of an arraylist, relying on the tostring override
IN THIS COURSE
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6m 21sDuring this video, you will learn how to override the toString method of the Object class. FREE ACCESS
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5m 9sLearn how to distinguish between interfaces and abstract classes. FREE ACCESS
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3. Implementing a Class Interface3m 2sTo implement an interface in a class, you must first create the interface. FREE ACCESS
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4. Interface Reference Casting6m 9sIn this video, you will learn how to cast to an interface reference to allow access to an object's methods. FREE ACCESS
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5. Introduction to ArrayList4m 24sUpon completion of this video, you will be able to describe the benefits of the ArrayList class. FREE ACCESS
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6. Using an ArrayList to Store Objects5m 36sIn this video, find out how to use an ArrayList to store data. FREE ACCESS
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7. Array Concatenation4m 1sIn this video, learn how to join two arrays into a single ArrayList. FREE ACCESS
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8. Converting an Array to an ArrayList4m 32sIn this video, you will convert an array to an ArrayList. FREE ACCESS
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9. Using the Stack6m 1sIn this video, you will learn how to use the Stack collection to push and pop objects. FREE ACCESS
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10. Type Inference Using var6m 18sIn this video, learn how to use the local variable type inference feature to declare local variables more efficiently. FREE ACCESS
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11. Lambda Expressions and Predicates6m 12sIn this video, you will learn how to write a simple lambda expression that uses a predicate. FREE ACCESS
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12. Exercise: Displaying the Contents of a List3m 13sIn this video, you will learn how to display the contents of an ArrayList, relying on the toString method. FREE ACCESS
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