Java Interview Guide: How to Build Confidence With a Solid Understanding of Core Java Principles pdfdrive com

Document Outline

• Introduction
• The Purpose of this Guide
• The Java Programming Language
• The History of Java
• The Java Virtual Machine
• Procedural Programming vs Object-Oriented Programming
• Questions
• Object-Oriented Concepts
• Abstraction
• Encapsulation
• Polymorphism
• Mutability
• Coupling
• Cohesion
• Questions
• Object-Oriented Programming (Part I)
• Classes & Objects
• Primitive Types
• Arrays
• Strings
• Enums
• Packages
• Questions
• Object-Oriented Programming (Part II)
• Methods
• Pass-by-Reference vs Pass-by-Value
• The Final Keyword
• The Static Keyword
• Access Modifiers
• Annotations
• Questions
• The Object Superclass
• Clone
• Equals
• HashCode
• ToString
• GetClass
• Finalize
• Wait, Notify, NotifyAll
• Questions
• Composition & Inheritance
• Composition
• Inheritance
• Method Overriding vs Method Overloading
• Composition vs Inheritance
• Questions
• Abstract Classes & Interfaces
• Abstract Classes
• Interfaces
• Abstract Classes vs Interfaces
• Anonymous Classes
• Questions
• Exceptions
• Unchecked Exceptions
• Checked Exceptions
• Unchecked Exceptions vs Checked Exceptions
• Errors
• Try/Catch/Finally
• Try-With-Resources
• Questions
• Generics
• Compile-Time Errors vs Runtime Errors
• Generics
• Generic Wildcards
• Type Erasure
• Questions
• Concurrency
• Thread Lifecycle
• Synchronization
• The Synchronize Keyword
• The Volatile Keyword
• Concurrent Data Structures
• The Executor Framework
• ThreadLocal Storage
• Atomic Variables
• Questions
• Memory Management
• Heap Memory
• Garbage Collection
• Strong References
• Memory Leaks
• Soft References
• Weak References
• Reference Queue
• Phantom References
• Questions
• Java Database Connectivity
• Connection
• Statements
• ResultSets
• SQL Injection
• Object-Relational Mapping
• Questions
• Web Applications
• The Servlet API
• Servlets
• JavaServer Pages
• Filters
• Model-View-Controller
• Questions
• Web Services
• Service-Oriented Architecture
• Web Services
• SOAP
• REST
• SOAP vs REST
• Questions
• Algorithms
• Big O Notation
• Binary Search
• Insertion Sort
• Merge Sort
• Quicksort
• Timsort
• Questions
• Java Collections Framework
• List
• Map
• Deque
• Binary Search Tree
• Heap
• Set
• Iterator
• Questions
• Important Interfaces
• Autocloseable
• Comparable
• Comparator
• Iterable
• Runnable
• Callable
• Serializable
• Questions
• Creational Design Patterns
• Builder Pattern
• Factory Pattern
• Abstract Factory Pattern
• Prototype Pattern
• Singleton Pattern
• Questions
• Structural Design Patterns
• Adapter Pattern
• Composite Pattern
• Decorator Pattern
• Facade Pattern
• Flyweight Pattern
• Questions
• Behavioral Design Patterns
• Command Pattern
• Observer Pattern
• Strategy Pattern
• Visitor Pattern
• Null Object Pattern
• Questions
• Reflection
• Class
• Field
• Method
• Pros and Cons
• Questions
• Dependency Injection
• Inversion of Control
• Service Locator vs Dependency Injection
• Constructor Injection vs Setter Injection
• The Spring Container
• Spring Configuration
• Spring Lifecycle
• Questions
• Aspect-Oriented Programming
• Core Concerns vs Cross-Cutting Concerns
• Aspect-Oriented Programming
• Proxy Objects
• Interface Proxies
• Inheritance Proxies
• Runtime Weaving vs Binary Weaving
• AspectJ
• Questions
• Unit Testing
• Test-Driven Development
• Unit Tests
• Test Fixtures
• Mock Objects
• Questions
• Programming Problems
• How to Approach Programming Problems
• Sample Programming Problems
• Interview Preparation
• Before the Interview
• During the Interview
• After the Interview
• Interview Questions
• About the Author