Java Generics, Collections Framework And Streams API

Learn about Data Structures in Collections, Generics and how to use Java Streams API for powerful operations.

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Last Updated: 2022-05-03 06:05:26 English Course Type: Self Learning

What The Java Collections Framework Is Composed Of.
Learn About The Data Structures Available In The Collection Framework.
What Are Generics And How To Use Generics.
How To Create Generic Classes.
How To Create Generic Interfaces.
How To Create Generic Functions.
How To Use Existing Collections Like Lists, Sets And Queues.
How To Use Java Streams.
Use Lambda Expressions And Method References In Streams.
Learn What Java Optionals Are And How To Use Them.
Learn About Stream Methods Such As Filter, Map, FlatMap And Collect.

Learn about Java Generics and how to create Generic classes. You also learn about Generic Interfaces and Methods.

After learning and understanding Java Generics we then dive into the Java Collections Framework where we learn about data structures such as List, ArrayList, HashMap, HashSet, LinkedList... and so on. Generics are an important part of the Java programming language.

We have extra lessons on Java Optional which helps us avoid null pointer exceptions in Java. You will learn about Optionals because it's knowledge will be applied when you learn about Java Streams API.

Finally, we learn about the Streams API, how it works and the various methods such as filter(), map(), flatMap(), reduce(), collect() ... and so on.

After this course, you should have a solid understanding of the Java Generics, the Collection Framework with its Data Structures and the Java Streams API.

In a nutshell, generics enable types (classes and interfaces) to be parameters when defining classes, interfaces and methods. Much like the more familiar formal parameters used in method declarations, type parameters provide a way for you to re-use the same code with different inputs. The difference is that the inputs to formal parameters are values, while the inputs to type parameters are types. (Java Docs)

Java SDK 11 Installed (Not Compulsory)
Understand Basics Of Java.
Understand Java Lambda Expressions And Method References.

Developers Who Want To Learn About Java Generics.
Developers Who Want To Learn About The Java Collection Framework And Its Data Structures.
Developers Who Want To Learn About Java Streams.

Section 1 : Java Generics 14 Lectures 01:01:38
Lecture 1 :
Coding Without Generics Preview
Lecture 2 :
Intro to Generics
Lecture 3 :
Multiple Type Parameters
Lecture 4 :
Bounded Types
Lecture 5 :
Bounded Types - Interfaces
Lecture 6 :
Generic WildCards
Lecture 7 :
Bounded WildCards
Lecture 8 :
Lower Bound WildCards
Lecture 9 :
Generic Method
Lecture 10 :
Generic Constructors
Lecture 11 :
Generic Interfaces
Lecture 12 :
Raw Types
Lecture 13 :
Generic Super Class
Lecture 14 :
Generic Sub Class
Section 2 : Introduction to Java Collection Framework 14 Lectures 00:48:01
Lecture 1 :
The Collection Framework
Lecture 2 :
The Collection Class
Lecture 3 :
Intro to ArrayList
Lecture 4 :
ArrayList Add Remove Method
Lecture 5 :
ArrayList Set, AddAll and RemoveAll
Lecture 6 :
ArrayList RemoveIf, Clear and Contains
Lecture 7 :
Using Arrays Class
Lecture 8 :
Using Iterators
Lecture 9 :
Using Spliterators
Lecture 10 :
For and ForEachLoop
Lecture 11 :
List with Reference Type
Lecture 12 :
Create a new list using liftoff
Lecture 13 :
Convert List to Array and Vice Versa
Lecture 14 :
LinkedList
Section 3 : The Set And Queue Interface 13 Lectures 00:46:23
Lecture 1 :
Introducing HashSet
Lecture 2 :
HashSet Capacity and LoadFactor
Lecture 3 :
Linked HashSet
Lecture 4 :
TreeSet
Lecture 5 :
Intro to Comparator
Lecture 6 :
TreeSet with Comparator
Lecture 7 :
Queues
Lecture 8 :
LinkedList Revisited
Lecture 9 :
LinkedList as List
Lecture 10 :
LinkedList as Queue
Lecture 11 :
LinkedList as Deque
Lecture 12 :
ProrityQueue
Lecture 13 :
ArrayDeque
Section 4 : Map Interface And HashMaps Class 14 Lectures 00:36:57
Lecture 1 :
Maps
Lecture 2 :
HashMaps - Put And Get
Lecture 3 :
HashMaps - PutIfAbsent
Lecture 4 :
HashMap - GetOrDefault
Lecture 5 :
HashMaps - Values, KeySet, Remove
Lecture 6 :
HashMaps - Remove and Replace
Lecture 7 :
HashMaps - ReplaceAll
Lecture 8 :
HashMaps - Compute
Lecture 9 :
HashMaps - Merge
Lecture 10 :
HashMaps - Extra Methods
Lecture 11 :
TreeMap
Lecture 12 :
LinkedHashMaps
Lecture 13 :
Collection Algorithms
Lecture 14 :
Comparable Interface, need to check
Section 5 : Java Optionals 9 Lectures 00:34:13
Lecture 1 :
Where Optional is Needed
Lecture 2 :
Optional Initialisation
Lecture 3 :
Optional isPresent And isEmpty
Lecture 4 :
Optional OrElse
Lecture 5 :
Optional Map
Lecture 6 :
Optional Filter
Lecture 7 :
Optional ifPresent
Lecture 8 :
Optional on NonNull Return Value
Lecture 9 :
Optional on Nullable
Section 6 : Java Streams 10 Lectures 00:46:05
Lecture 1 :
Streams?
Lecture 2 :
Creating new Streams
Lecture 3 :
Create Streams From Collection
Lecture 4 :
Create IntStream from int[] array
Lecture 5 :
Sorted, Min and Max Stream Method
Lecture 6 :
Min and Max on Primitive Streams
Lecture 7 :
Stream Count Method
Lecture 8 :
Stream Reduce Method
Lecture 9 :
Create Stream from Primitive Values
Lecture 10 :
Call Reduce on List of Objects
Section 7 : Stream Map Operations 5 Lectures 00:23:13
Lecture 1 :
Stream Map Operation
Lecture 2 :
Stream Map To Int, Double, and Long
Lecture 3 :
Map To Object
Lecture 4 :
Order of Stream Operations
Lecture 5 :
Stream FlatMap Operation
Section 8 : More Stream Operations 9 Lectures 00:28:35
Lecture 1 :
Matching All , Any And None
Lecture 2 :
Stream Builder
Lecture 3 :
Collect Method
Lecture 4 :
Collectors tolist and toset
Lecture 5 :
Collectors toMap
Lecture 6 :
Collectors PartitioningBy
Lecture 7 :
Collectors PartitioningBy with Arguments
Lecture 8 :
Collectors GroupingBy
Lecture 9 :
Collectors Joining
Section 9 : Where To Go From Here 0 Lectures

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