SkillSoft Explore Course – Lambers, Inc.

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IT Professional Curricula Software Development Solution Area Java 2 Programming Advanced Features in Java

In this course, you'll explore the Set interface and the different Set collections available in Java. You'll learn how the Java Set interface extends Collection, and how it is used to define unordered collections in which duplicates are not allowed. You'll discover common set operations such as union, difference, intersection, and equality, as well as how these are influenced heavily by the implementation of .equals and .hashCode in the objects contained within the set. You'll cover four implementations of the Set interface - HashSet, LinkedHashSet, EnumSet, and TreeSet. Finally, you'll learn the correct implementations of the .hashCode, .equals, and .compareTo methods of user-defined objects that are to be stored in Sets.

Asset ID	it_jdadfjdj_04_enus
Course Type	Video Course
Course Category	Software Development Solution Area

Objectives
Advanced Features in Java: Working with Sets In Java discover the key concepts covered in this course create a HashSet object and invoke multiple methods on it, and also correctly override the .hashCode and .equals method of the contained class describe how the HashSet behaves with duplicates and how overridden versions of the .equals and the .hashCode methods influence this behavior recognize the different types of sets and how they all extend the Set, Collection, and Iterable interfaces differentiate between methods used to compute set union, difference, intersection, and equality operations analyze the performance characteristics of LinkedHashSets, TreeSets, and HashSets recognize how and why EnumSets should be used to represent categorical data describe how different implementations of the Set interface differ in their notions of set order create a TreeSet and sort it using various custom comparators create a TreeSet that stores custom objects without also creating a custom comparator summarize the key concepts covered in this course

Objectives

Advanced Features in Java: Working with Sets In Java

discover the key concepts covered in this course
create a HashSet object and invoke multiple methods on it, and also correctly override the .hashCode and .equals method of the contained class
describe how the HashSet behaves with duplicates and how overridden versions of the .equals and the .hashCode methods influence this behavior
recognize the different types of sets and how they all extend the Set, Collection, and Iterable interfaces
differentiate between methods used to compute set union, difference, intersection, and equality operations
analyze the performance characteristics of LinkedHashSets, TreeSets, and HashSets
recognize how and why EnumSets should be used to represent categorical data
describe how different implementations of the Set interface differ in their notions of set order
create a TreeSet and sort it using various custom comparators
create a TreeSet that stores custom objects without also creating a custom comparator
summarize the key concepts covered in this course