Object-Oriented Programming in Java

92 lessons in Java

• Instance vs local variablesCode Quiz
• Static context errorCode Quiz
• Default vs explicit constructorCode Quiz
• NullPointerException from uninitialized referenceCode Quiz
• The super keywordCode Quiz
• == vs equalsCode Quiz
• Accessing fields and calling methodsCode Quiz
• Creating an object with newCode Quiz
• Inheritance with extendsCode Quiz
• Defining and calling a constructorCode Quiz
• toString and default printingCode Quiz
• Getters and settersCode Quiz
• Static vs instance membersCode Quiz
• The this keywordCode Quiz
• Access modifiers on membersCode Quiz
• Method overriding in a subclassCode Quiz
• Method overloadingCode Quiz
• Defining a class with fields and methodsCode Quiz
• The Four Pillars of OOPSlides / Video
• Interfaces as Contracts for BehaviorSlides / Video
• Abstraction and Abstract ClassesSlides / Video
• Polymorphism Basics in JavaSlides / Video
• Method Overriding in SubclassesSlides / Video
• Inheritance and the extends KeywordSlides / Video
• Getter and Setter MethodsSlides / Video
• Encapsulation with Access ModifiersSlides / Video
• The Dot Operator in JavaSlides / Video
• Default vs Parameterized ConstructorsSlides / Video
• Constructors for Initializing ObjectsSlides / Video
• Method OverridingQuiz
• Getters and SettersQuiz
• Abstract Classes BasicsQuiz
• Encapsulation ConceptQuiz
• What Is a Class in JavaQuiz
• Creating Objects with newQuiz
• Declaring Instance VariablesQuiz
• The this Keyword BasicsQuiz
• Constructors and Their PurposeQuiz
• Access ModifiersQuiz
• Inheritance and extendsQuiz
• Polymorphism ConceptQuiz
• Class vs Object DistinctionQuiz
• Abstraction ConceptQuiz
• Default vs Parameterized ConstructorsQuiz
• The Dot OperatorQuiz
• Four Pillars of OOPQuiz
• What Is an Object in JavaQuiz
• Interfaces BasicsQuiz
• Object as Root ClassQuiz
• Instance vs Static MembersQuiz
• The super Keyword BasicsQuiz
• Method OverloadingQuiz
• Declaring Methods in a ClassQuiz
• The 'this' Keyword in JavaSlides / Video
• Creating Objects with the new KeywordSlides / Video
• Methods Define Object BehaviorSlides / Video
• The instanceof OperatorFlashcard
• Access ModifiersFlashcard
• The this KeywordFlashcard
• Accessing Members with Dot OperatorFlashcard
• Interface vs Abstract ClassFlashcard
• What Is a ClassFlashcard
• Package Declaration and OrganizationFlashcard
• Object References vs PrimitivesFlashcard
• Object Class as RootFlashcard
• Class vs Object DistinctionFlashcard
• Static vs Instance MembersFlashcard
• Static MembersFlashcard
• InterfacesFlashcard
• PolymorphismFlashcard
• Constructor OverloadingFlashcard
• Method OverloadingFlashcard
• The super KeywordFlashcard
• Getters and SettersFlashcard
• Four Pillars of OOP OverviewFlashcard
• What Is an ObjectFlashcard
• Method OverridingFlashcard
• ConstructorsFlashcard
• Inheritance and extendsFlashcard
• Creating Objects with newFlashcard
• Default ConstructorFlashcard
• The toString MethodFlashcard
• Fields (Instance Variables)Flashcard
• The final KeywordFlashcard
• EncapsulationFlashcard
• Abstraction ConceptFlashcard
• Methods (Behavior)Flashcard
• Abstract Classes and MethodsFlashcard
• Fields Store Object StateSlides / Video
• Objects as Instances of ClassesSlides / Video
• Classes as Blueprints for ObjectsSlides / Video
• What Object-Oriented Programming IsSlides / Video