Inheritance allows classes to extend existing classes, reusing and building upon their attributes and behaviors. This supports polymorphism by allowing parent and child classes to be treated the same when interacting with their common attributes and methods. Well-known inheritance hierarchies include shapes (like rectangles and circles) inheriting from a parent shape class, or employees inheriting from a main employee class. Inheritance promotes code reuse and flexibility.
Some of the common interview questions asked during a Java Interview. These may apply to Java Interviews. Be prepared with answers for the interview questions below when you prepare for an interview. Also have an example to explain how you worked on various interview questions asked below. Java Developers are expected to have references and be able to explain from their past experiences. All the Best for a successful career as a Java Developer!
Some of the common interview questions asked during a Java Interview. These may apply to Java Interviews. Be prepared with answers for the interview questions below when you prepare for an interview. Also have an example to explain how you worked on various interview questions asked below. Java Developers are expected to have references and be able to explain from their past experiences. All the Best for a successful career as a Java Developer!
Do you want to crack android interview?
These are the most frequently asked Android Interview questions for experienced and entry level android programmers.
Some of the common interview questions asked during a Java Interview. These may apply to Java Interviews. Be prepared with answers for the interview questions below when you prepare for an interview. Also have an example to explain how you worked on various interview questions asked below. Java Developers are expected to have references and be able to explain from their past experiences. All the Best for a successful career as a Java Developer!
Some of the common interview questions asked during a Java Interview. These may apply to Java Interviews. Be prepared with answers for the interview questions below when you prepare for an interview. Also have an example to explain how you worked on various interview questions asked below. Java Developers are expected to have references and be able to explain from their past experiences. All the Best for a successful career as a Java Developer!
Do you want to crack android interview?
These are the most frequently asked Android Interview questions for experienced and entry level android programmers.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2. On the surface, inheritance is a code re-use
issue.
we can extend code that is already written in a
manageable manner.
Inheritance is more
it supports polymorphism at the language level
2
3. Take an existing object type (collection of
fields and methods) and extend it.
create a special version of the code without re-
writing any of the existing code (or even
explicitly calling it!).
End result is a more specific object type, called
the sub-class / derived class / child class.
The original code is called the superclass /
parent class / base class.
3
4. Employee: name, email, phone
FulltimeEmployee: also has salary, office, benefits,
…
Manager: CompanyCar, can change salaries, rates contracts,
offices, etc.
Contractor: HourlyRate, ContractDuration, …
A manager is a special kind of
FullTimeEmployee, which is a special kind of
Employee.
4
5. Create code that deals with general object
types, without the need to know what
specific type each object is.
Generate a list of employee names:
all objects derived from Employee have a name
field since Employee has a name field
no need to treat managers differently from
anyone else.
5
6. The real power comes with
methods/behaviors.
A better example:
shape object types used by a drawing program.
we want to be able to handle any kind of shape
someone wants to code (in the future).
we want to be able to write code now that can
deal with shape objects (without knowing what
they are!).
6
7. Shape:
color, layer fields
draw() draw itself on the screen
calcArea() calculates it's own area.
serialize() generate a string that can be
saved and later used to re-generate the
object.
7
8. Rectangle
Triangle
Circle
8
Each could be a kind of shape
(could be specializations of the
shape class).
Each knows how to draw itself,
etc.
Could write code to have all
shapes draw themselves, or save
the whole collection to a file.
10. Abstract modifier means that the class can
be used as a superclass only.
no objects of this class can be created.
can have attributes, even code
all are inherited
methods can be overridden
Used in inheritance hierarchies
10
11. private/protected/public:
protected means private to all but subclasses
what if none of these specified?
abstract: no implementation given, must be
supplied by subclass.
the class itself must also be declared abstract
final: the method cannot be changed by a
subclass (no alternative implementation can be
provided by a subclass).
11
12. 12
Interesting Method Modifiers
(that have nothing to do with this slide set)
• native: the method is written in some local
code (C/C++) - the implementation is not
provided in Java (recall assembler routines
linked with C)
• synchronized: only one thread at a time
can call the method (later)
13. When one object type depends on another,
the relationship could be:
is-a
has-a
Sometimes it's hard to define the
relationship, but in general you use
composition (aggregation) when the
relationship is has-a
13
14. One class has instance variables that refer to
object of another.
Sometimes we have a collection of objects,
the class just provides the glue.
establishes the relationship between objects.
There is nothing special happening here (as
far as the compiler is concerned).
14
15. One object type is defined as being a special
version of some other object type.
a specialization.
The more general class is called:
base class, super class, parent class.
The more specific class is called:
derived class, subclass, child class.
15
16. A derived class object is an object of the
base class.
is-a, not has-a.
all fields and methods are inherited.
The derived class object also has some stuff
that the base class does not provide
(usually).
16
17. Two kinds:
implementation: the code that defines methods.
interface: the method prototypes only.
Other OOP languages often provide the same
capabilities (but not as an explicit option).
17
18. Derived class inherits the implementations of
all methods from base class.
can replace some with alternatives.
new methods in derived class can access all non-
private base class fields and methods.
This is similar to (simple) C++ inheritance.
18
19. Can use super() to access all (non-private)
superclass methods.
even those replaced with new versions in the
derived class.
Can use super() to call base class
constructor.
use arguments to specify desired constructor
19
20. You can't extend more than one class!
the derived class can't have more than one base
class.
You can do multiple inheritance with
interface inheritance.
20
21. A object of a derived class can be cast as
an object of the base class.
this is much of the power!
When a method is called, the selection of
which version of method is run is totally
dynamic.
overridden methods are dynamic.
Note: Selection of overloaded methods is done at compile
time. There are some situations in which this can cause
confusion.
21
22. Granddaddy of all Java classes.
All methods defined in the class Object are
available in every class.
Any object can be cast as an Object.
22
23. An interface is a definition of method
prototypes and possibly some constants
(static final fields).
An interface does not include the
implementation of any methods, it just
defines a set of methods that could be
implemented.
23
24. A class can implement an interface, this
means that it provides implementations for
all the methods in the interface.
Java classes can implement any number of
interfaces (multiple interface inheritance).
24
25. Creation (definition) of interfaces can be
done using inheritance:
one interface can extend another.
Sometimes interfaces are used just as
labeling mechanisms:
Look in the Java API documentation for
interfaces like Cloneable.
Example: BubbleSort w/
SortInterfaceDemo
25