Java Fundamentals

• Composition
• enum types
• Garbage collection
• static class members
• static import
• final instance variables
• Package access

• Superclasses and subclasses
• protected members
• Relationship between superclasses and subclasses
• Constructors in subclasses
• Class object

• Polymorphism examples
• Abstract classes and methods
• Allowed assignments between superclass and subclass variables
• final methods and classes
• Creating and using interfaces

• Exception handling overview
• Java Exception Hierarchy
• Stack unwinding and obtaining information from an exception
• Chained exceptions
• Declaring new exception types
• Assertions

• Class String
• Basic operations with strings – comparison, concatenation, extracting substring, searching
• More operations with strings – replacing substrings, deleting substrings

• StringBuilder constructors
• StringBuilder methods – length, capacity, setLength and ensureCapacity
• StringBuilder methods – charAt, setCharAt, getChars and reverse
• StringBuilder append methods
• StringBuilder insertion and deletion methods

• Regular expressions, class Pattern and class Matcher
• Replacing substrings and splitting strings

• Collections overview
• Type-Wrapper classes
• Autoboxing and unboxing
• Interface Collection and class Collections
• Lists
• ArrayList and iterator
• LinkedList
• Collections methods
• Method sort
• Method shuffle
• Methods reverse, fill, copy, max and min
• Method binarySearch
• Methods addAll, frequency and disjoint
• Class PriorityQueue and Interface Queue
• Sets
• Maps

• Collections overview
• Synchronized collections
• Unmodifiable collections
• Abstract implementations
• Overloading generic methods
• Generic classes
• Wildcards in methods that accept type parameters

Test what you’ve learned in a hands-on project that you can be proud to include on your resume/CV.