What are abstract classes?
Don\'t interfaces also allow for polymorphism? If so, what is the difference between abstract
classes and interfaces? Which would you choose when?
Solution
(i)
Abstract class:
abstract class is a class that is declared abstract.
-It may include or may not include abstract method.
-It can be subclassed ,but cannot be instantiated.
-A abstract method is a method that is declared without an implementation.
e.g abstract void drive1()
If a class includes abstract methods,then the class declare itself as abstract.
e.g
public abstract class DriveCar {
abstract void drive1();
}
(ii)
Interface allow polymorphism.It formalize polymorphism.
If two elements realizes the same interface,then only these are polymorphic w.r.t a set of
behaviors .
It gives good description of working of polymorphism & allows us to define polymorphism in a
declarative way.
(iii)
Difference between abstract classes & interfaces:
It can extent only one class or one abstract class at a time.
It can have abstract and non-abstract methods.
(iv)
We would use abstract class in the following scenerio:
(i)When we want to use inheritance as it provides a common base class implementation to
derived classes.
(ii)When we want to declare non-public method as Interface has all methods as public only.
(iii)When we want to add methods in future because if you add a method to interface,then all of
the classes that are already implemented ,needed to be changed.
We would use interface in the following scenerio:
Interface is used when we need to implement multiple inheritance.Abstract ClassInterface
It can extent only one class or one abstract class at a time.
It can extent any number of interfaces at a time.
It can have abstract and non-abstract methods.
It can have only abstract methods.It can have protected ,public abstract methods.It can have only
public abstract method.abstract keyword is used to declare it.interface keyword is used to declare
itA class can extent only one abstract class.
A class can implement any number of interfacesIt can be inherited by a class or an abstract class.
It can be extended only by interfaces.Classes has to implement them instead of extend.
It can have static methods,main methodds and constructor.
It can\'t have static methods,main methodds and constructor..
Abstraction in Java: Abstract class and InterfacesJamsher bhanbhro
In my presentation titled "Abstraction in Java," I have discussed the fundamental concept of abstraction in Java programming. The presentation delves into how abstraction is a key principle in object-oriented programming, explaining its role in hiding the complexity of code while exposing only the necessary details. It includes examples and explanations on implementing abstraction in Java, offering a clear understanding for both beginners and intermediate learners. This presentation serves as an educational guide for those interested in enhancing their Java programming skills and understanding the practical applications of abstraction in software development.
Index
Definition
Usefulness
Why they cannot be instantiated?
How to use abstract classes?
Purpose of abstract class
What is Concrete class?
Examples
Characteristics explained
Basic java important interview questions and answers to secure a jobGaruda Trainings
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
Many occasion students are wondering which one should they choose in coding and why .In most cases, we want to avoid inheritance. We should use abstract classes only when we want to include functionality, but parts of the class's purpose need to be implemented by the child class.With abstract classes, you are forcing other developers to implement child classes using inheritance. Interfaces are much easier to add to existing classes, and with defender methods there is little reason to not consider interfaces first.
What is an interface How is extending a class different from implem.pdfarchitcreation
What is an interface? How is extending a class different from implementing an interface?
Solution
Inteface: Interface is nothing but a class which contains abstract methods and constants only.
Abstract methods are the methods which have declaration but no bosy implementation.
Interfaces can not have constrcutor and can not be instanstiated. By using interface we can
achive multiple inheritance.
Inheritance goes with \"implements\" keyword in interfaces
where as Inheritance goes with \"extends\" keyword in class.
If we implements interface in sub class then we should implement all abstract methds in interface
in sub classses.
interface syntax
public interface interfacename{
public abstract void abstractMethod1();
public abstract void abstractMethod2();
public static final CONSTACT = 1000;
}
Class syntax
public class className{
public void methodA(){
}
public void methodB(){
}
}
Inheritance goes with implements in interface
public class A implements interfaceName{
}
Inheritance goes with extends in class
public class A extends ClassName{
}
Inheritance goes with implements in interface
public class A implements interfaceName{
}.
Identify the four factors of production, and tell what type of incom.pdfarihantkitchenmart
Identify the four factors of production, and tell what type of income is earned by each factor.
Solution
Four factors :Labor, Land, Capital,entrepreneurship
entrepreneurship : Earns profits for his use of skills and taking the risk.
Land: Earns rent for its use
Labor : Earns wage income for providing services
Capital: Earns interest income f.
Identify the membranes that line the cavity surrounding the lungs. p.pdfarihantkitchenmart
Identify the membranes that line the cavity surrounding the lungs. pulmonary membranes
parietal and visceral peritonea parietal and visceral pleura serous pericardium
Solution
parietal and visceral pleura
pulmonary pleura surrounds each lung and connects it to thoracic cavity. pulmonary plleura
consist of two pleura. visceral and parietal pleura.
visceral pleura is the serous membrane that lines each lung.
parietal pleura is the outer membrane attached to the inner suurface of thoracic cavity.
More Related Content
Similar to What are abstract classes Dont interfaces also allow for polymo.pdf
Abstraction in Java: Abstract class and InterfacesJamsher bhanbhro
In my presentation titled "Abstraction in Java," I have discussed the fundamental concept of abstraction in Java programming. The presentation delves into how abstraction is a key principle in object-oriented programming, explaining its role in hiding the complexity of code while exposing only the necessary details. It includes examples and explanations on implementing abstraction in Java, offering a clear understanding for both beginners and intermediate learners. This presentation serves as an educational guide for those interested in enhancing their Java programming skills and understanding the practical applications of abstraction in software development.
Index
Definition
Usefulness
Why they cannot be instantiated?
How to use abstract classes?
Purpose of abstract class
What is Concrete class?
Examples
Characteristics explained
Basic java important interview questions and answers to secure a jobGaruda Trainings
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
Many occasion students are wondering which one should they choose in coding and why .In most cases, we want to avoid inheritance. We should use abstract classes only when we want to include functionality, but parts of the class's purpose need to be implemented by the child class.With abstract classes, you are forcing other developers to implement child classes using inheritance. Interfaces are much easier to add to existing classes, and with defender methods there is little reason to not consider interfaces first.
What is an interface How is extending a class different from implem.pdfarchitcreation
What is an interface? How is extending a class different from implementing an interface?
Solution
Inteface: Interface is nothing but a class which contains abstract methods and constants only.
Abstract methods are the methods which have declaration but no bosy implementation.
Interfaces can not have constrcutor and can not be instanstiated. By using interface we can
achive multiple inheritance.
Inheritance goes with \"implements\" keyword in interfaces
where as Inheritance goes with \"extends\" keyword in class.
If we implements interface in sub class then we should implement all abstract methds in interface
in sub classses.
interface syntax
public interface interfacename{
public abstract void abstractMethod1();
public abstract void abstractMethod2();
public static final CONSTACT = 1000;
}
Class syntax
public class className{
public void methodA(){
}
public void methodB(){
}
}
Inheritance goes with implements in interface
public class A implements interfaceName{
}
Inheritance goes with extends in class
public class A extends ClassName{
}
Inheritance goes with implements in interface
public class A implements interfaceName{
}.
Identify the four factors of production, and tell what type of incom.pdfarihantkitchenmart
Identify the four factors of production, and tell what type of income is earned by each factor.
Solution
Four factors :Labor, Land, Capital,entrepreneurship
entrepreneurship : Earns profits for his use of skills and taking the risk.
Land: Earns rent for its use
Labor : Earns wage income for providing services
Capital: Earns interest income f.
Identify the membranes that line the cavity surrounding the lungs. p.pdfarihantkitchenmart
Identify the membranes that line the cavity surrounding the lungs. pulmonary membranes
parietal and visceral peritonea parietal and visceral pleura serous pericardium
Solution
parietal and visceral pleura
pulmonary pleura surrounds each lung and connects it to thoracic cavity. pulmonary plleura
consist of two pleura. visceral and parietal pleura.
visceral pleura is the serous membrane that lines each lung.
parietal pleura is the outer membrane attached to the inner suurface of thoracic cavity.
How is explicit knowledge different from tacit knowledgeSolutio.pdfarihantkitchenmart
How is explicit knowledge different from tacit knowledge?
Solution
expelcit knowledge can be trasfered to other easily, what ever we knows and want to share others
we can. we can write it, we can speak it and we can draw it and make the opposite understand it.
on the other hand tacit knowledge is intuitive and unarticulated knowledge that cannot be
communicated, understood or used without the ‘knowing subject’. to understand this the subject
knowledge is required to the opposit people.
explecit knowledge can be learned by formal education, logical thinking and practical
experience, where as tacit knowledge can acquire through practical exeperience only..
How did printing technology impact literacy and education How d.pdfarihantkitchenmart
How did printing technology impact literacy and education ?
How did printing technology impact literacy and education ?
Solution
Print culture embodies all forms of printed text and other printed forms of Visual
Communication. One prominent scholar in the field is Elizabeth Eisenstein, who contrasted print
culture, which appeared in Europe in the centuries after the advent of the Western printing press
to scribal culture.
Print culture is the conglomeration of effects on human society that is created by making printed
forms of communication. Print culture encompasses many stages as it has evolved in response to
technological advances. Print culture can first be studied from the period of time involving the
gradual movement from oration to script as it is the basis for print culture. As the printing
became commonplace, script became insufficient and printed documents were mass produced.
The era of physical print has had a lasting effect on human culture, but with the advent of digital
text, some scholars believe the printed word is becoming obsolete.
The advent of the printing press over five hundred years ago may be described as one of the few
major significant events in mankind’s history in terms of the greatest impact on literacy. Before
paper and print were invented, oral communication was the only method in which information
was gathered and distributed. Even though this bound the community together, it did not allow
the community to grow and there were no methods of accurately storing and retrieving
information. Further, if the community moved on or perished so did their historical records and
knowledge. Although the following technologies involved the written word in the form of
papyrus scrolls and manuscript codex as examples, it was still quite time consuming and limited
to the upper literate elite class of society. When the printing press was invented there was a shift
from the laborious manuscript making to the codex print allowing many copies of written work
to be quickly created, in turn providing greater access to information for all and providing the
framework for the gradual transformation of societal literacy.
The concept of printing was first conceived and developed in China and Korea. Although the
concept was conceived by the eastern nations, the first mechanized printing press was invented
by a German metalworker named Johann Gutenberg in 1452. Gutenberg did not invent the
printing press but rather conceived the idea of movable type which is actually an aggregation of
three distinct technologies utilized by humans for many centuries before Gutenberg (Jones
2007). This can be described as a form of remediation of previous communication technologies.
Bolter defines remediation when a, “newer medium takes place of an older one, borrowing and
reorganizing the characteristics of writing in the older medium and reforming its cultural space.”
(Bolter, 2001, p.23). Gutenberg combined the technologies of paper, viscous oil-based ink.
Could a violent video games make a person become a terrorist .pdfarihantkitchenmart
Could a violent video games make a person become a terrorist ?
Could a violent video games make a person become a terrorist ?
Solution
If we the see the direct effect we can easily say no but the affects of violent video games have
been analyzed and it proves a person to a limit above normal which could instigate afeeling of
hatred and violence which could in extreme cases could lead a person to take extreme steps like
becoming a criminal or a terrorist. Long term exposure or addiction to such games could stir a
change in behaviour making the person used to anger and violence, leading to change in
behaviour in daily life and adopting actions of extreme nature..
For each of the four rows in Table 5.10-1, organize and combine the .pdfarihantkitchenmart
For each of the four rows in Table 5.10-1, organize and combine the five columns of information
together into one-to-two paragraphs that explain them in an easy-to-read format.
Table 5.10-1:
Risk Factor
(and Reason for
Significance)
Metrics
(and How Collected)
Risk Reduction/
Prevention Plan
Contingency
Plan
Entrance
Criteria
1. Requirements
stability.
(More people and
organizations (e.g.,
Navy, NATO) involved
means more time, more
requirements, and
requirements. instability
which leads to
cost/schedule slippage)
Track number of
requirements: original,
new, changed, deleted
(Count new, changed, and
deleted requirements every
month vs. previous month
by automated tool which
reads requirements
database)
Report requirements
stability with
written estimated
impact assessment
to all parties every
month and baseline
(freeze)
requirements at
planned time in
schedule
Reduce
functionality to
meet cost and
schedule or
increase funds and
schedule to
include
new/changed
requirements
If number of
changed req.
and number of
new
requirements
per month
exceeds 4
2: New Technology
(Learning curves for
OOD design techniques
and Ada language by the
development team will
take time; compiler
maturity for target
hardware (PCs) is low)
Count staff members
qualified in each discipline
(When staff member gets
minimum score on
OOD/Ada test or meets
other objective criteria)
1) Provide technical
training in OOD and
Ada;
2) Use and enforce
design and coding
standards
Employ OOD/Ada
expert
consultant(s) to
assist development
If the design or
coding
milestones fall
behind
schedule by
more than
15%
3: Reliability of
support organizations.
(Non-delivery of
required hardware and/or
materials will directly
impact on our ability to
deliver the complete system)
Production, installation,
and test milestones of each
required outside element
(Milestone progress
reports from all critical
suppliers and vendors)
Provide a bonus
structure to each
vendor and supplier
that is delivering a
required item for
delivering on time
Identify alternative
vendors and
suppliers and
purchase spares as
backup
Delta time
threshold over
2 weeks past
scheduled
delivery date
4: Overall system
testability.
(No test facility exists
that matches the real
system from beginning
to end as it exists in the
field.)
Percentage of Interfaces
tested and verified as
correct (Overall system
interface requirements
tracked through bi-weekly
status reports until
complete)
Develop a simulator
and test environment
that replicates as
nearly as possible
the whole system,
especially the
interfaces
Move testing to
field sites
If any required
interfaces
cannot be
tested in a
simulator
environment
by their
milestone due date
Risk Factor
(and Reason for
Significance)
Metrics
(and How Collected)
Risk Reduction/
Prevention Plan
Contingency
Plan
Entrance
Criteria
1. Requirements
stability.
(More people and
organizations (e.g.,
Navy, NATO) involved
means more time, more
requirements, and
requirements. instability
which leads to
cos.
Applying change management theoryto discuss the integration ofone of.pdfarihantkitchenmart
Applying change management theoryto discuss the integration ofone of the four types of
knowledge-based decision support systems
Solution
Change management and knowledge-based decision support systems to my mind are supposed to
play both supplementary and complementry roles in the development of decision making process
in almost all types of the organizations.
With the development of computers and emergence of Data based Management System
(DBMS), very many companies/ organizations underwent changes during 1950 and 1970 but
mostly at the lower level of management to cope up with the incresed level of transactions and
the subsequent couple of decades with the success of Decision Supports Systems (DSS) and
increasing use of internet forced the middle level management to pay attention to the crucial role
of Information Technology and its impact on the theories of change management. Middle level
of management has popularised the terms Executive information Systems (EIS), Management
Information Systems (MIS and Experts Systems (ES).
Currently all levels of management including top level management who is more resposible for
strategic planning, are talking about all types of knowledge-based decision support systems to be
integrated in so called Enterprise Resources Planning Systems (ERP).
The introduction of ERP, the ultimate of integration of all activities, tasks, procedures, processes,
rules regulations etc calls upon the Change management theories to come into play for the
success of ERP. It is required because ERP needs not only the integration of knowledge-based
decision support systems but being very much dynamic in nature needs change management
theories for its implementation..
Albinism in humans is inherited as a simple recessive trait. For the.pdfarihantkitchenmart
Albinism in humans is inherited as a simple recessive trait. For the following families, determine
the most likely genotypes of the parents. A normal male and an albino female have six children,
three normal and three albino. What are the most likely genotypes of the parents?
a.male AA; female aa
b.male AA; female Aa
c.male Aa; female aa
d.male Aa; female Aa
Solution
c.male Aa; female aa
Albinism is a homozygous recessive trait. Assume that the gene coding for normal phenotype is
A and the gene coding for albinism is a (A is normal and A is dominant over a), albinism is
inherited by a homozygous recessive pattern (aa).
It is given that an unaffected male and an affected female had both normal and affected children.
Means, the children receive one recessive allele from the mother and the other from the father.
Thus, the father is heterozygous (Aa) and the mother is homozygous recessive (aa)..
Exercise 3 Cell Structure Name Tacabac 1. Cells in the body have a fl.pdfarihantkitchenmart
Exercise 3 Cell Structure Name Tacabac 1. Cells in the body have a fluid surrounding them.
What is the name of this fluid? 2. The cytoplasm has a liquid portion. What is it called? 3. What
structure in a cell is mostly composed of a phospholipid bilayer? 4. Which organelle is
responsible for ATP production? 5. Which organelle makes protein and lipids? 6. Which
organelle in the cell has cristae? 7. Which organelle directs the activity of the cell and contains
most of the genetic information of the co 8. Which cellular structure is responsible for ribosome
production?
Solution
Extracellular fluid
Cytoplasm
Cell membrane
Mitochondria
Endoplasmic reticulum
Mitochondria
Nucleus.
Does isoforms have do do anything with transcription and translat.pdfarihantkitchenmart
Does isoforms have do do anything with transcription and translation?
Does isoforms have do do anything with transcription and translation?
Solution
isoforms are two similar proteins which have different amino acid sequence, even though they
have similar functions. they paly major roles in transcription and translation by acting in splicing,
initiation of translation and also in promoter usage..
discuss the evolutionary significance of bilateral symmetry, cephali.pdfarihantkitchenmart
discuss the evolutionary significance of bilateral symmetry, cephalization, and triploblasty
Solution
BILATERAL SYMMETRY-The evolutionary significance of it is , bilateral symmetry is a
feature of most of the vertebrae. bilateral symmetry contribute to the development of complex
central nervous system such as spinal cord and vast network of nerves in the brain. it also help in
sensory organ development. this characters make us superior from other species.
CEPHALIZATION- THE evolutionary significance of it is the development of brain which
becomes more complex and co-ordinated. other advantage is, thevconcentration of sense organs
at the front of the body and the close proximity of the mouth to sense organs.
TRIPLOBLASTY- the germ layers are evidence of slowly adapting layersof developmental
control during embryogenesis. the different cell work togeather on one job within an organised
higher order structure. tissue share a common cellular origin in embryogenesis..
Compare the best-case time complexities of Exchange Sort and Inserti.pdfarihantkitchenmart
Compare the best-case time complexities of Exchange Sort and Insertion Sort
Solution
When the list is already sorted (best-case), the complexity of exchange sort(bubble sort) and
insertion sort are only O(n).AlgorithmData Structurebest-case time complexities1Exchange Sort
or Bubble SortArrayO(n)2Insertion SortArrayO(n).
When we test your Fraction.java we will use the given FractionTester.pdfarihantkitchenmart
When we test your Fraction.java we will use the given FractionTester.java file.
Add the following methods to the given Fraction.java file
-public Fraction add( Fraction other) returns a Fraction that is the sum of the two Fractions.
-public Fraction subtract( Fraction other) returns a Fraction that is the difference between this
Fraction minus the other Fraction.
-public Fraction multiply( Fraction other) returns a Fraction that is the product of the two
Fractions.
-public Fraction divide( Fraction other) returns a Fraction that is the quotient of the two
Fractions.
-public Fraction reciprocal() returns a Fraction that is the reciprocal of this Fractions.
-private void reduce() Does not return a Fraction. It just modifies this Fraction by reducing it to
its lowest form.
Every Fraction must reduce at all times. Every new fraction constructed it must be reduced
before the constructor exits. No Fraction at any time may be stored in a form other than its
reduced form.
/* Fraction.java A class (data type) definition file
This file just defines what a Fraction is
This file is NOT a program
** data members are PRIVATE
** method members are PUBLIC
*/
public class Fraction
{
private int numer;
private int denom;
// ACCESSORS
public int getNumer()
{
return numer;
}
public int getDenom()
{
return denom;
}
public String toString()
{
return numer + \"/\" + denom;
}
// MUTATORS
public void setNumer( int n )
{
numer = n;
}
public void setDenom( int d )
{
if (d!=0)
denom=d;
else
{
// error msg OR exception OR exit etc.
}
}
// DEFAULT CONSTRUCTOR - no args passed in
public Fraction( )
{
this( 0, 1 ); // \"this\" means call a fellow constructor
}
// 1 arg CONSTRUCTOR - 1 arg passed in
// assume user wants whole number
public Fraction( int n )
{
this( n, 1 ); // \"this\" means call a fellow constructor
}
// FULL CONSTRUCTOR - an arg for each class data member
public Fraction( int n, int d )
{
setNumer(n);
setDenom(d);
// call your reduce here
}
// COPY CONSTRUCTOR - takes ref to some already initialized Fraction object
public Fraction( Fraction other )
{
this( other.numer, other.denom ); // call my full C\'Tor with other Fraction\'s data
}
private void reduce()
{
// reduces this fraction to lowest form
}
}// EOF
JavaTester file
Solution
/* Fraction.java A class (data type) definition file
This file just defines what a Fraction is
This file is NOT a program
** data members are PRIVATE
** method members are PUBLIC
*/
public class Fraction {
private int numer;
private int denom;
// ACCESSORS
public int getNumer() {
return numer;
}
public int getDenom() {
return denom;
}
public String toString() {
return numer + \"/\" + denom;
}
// MUTATORS
public void setNumer(int n) {
numer = n;
}
public void setDenom(int d) {
if (d != 0)
denom = d;
else {
// error msg OR exception OR exit etc.
}
}
// DEFAULT CONSTRUCTOR - no args passed in
public Fraction() {
this(0, 1); // \"this\" means call a fellow constructor
}
// 1 arg CONSTRUCTOR - 1 arg passed in
// assume user wants who.
What are transposons How have they been exploited for bacterial gen.pdfarihantkitchenmart
What are transposons? How have they been exploited for bacterial genetic research?
Solution
The discrete genetic elements of pathogens such as bacteriophages, \"transposons\" & conjugate
plasmids that integrated into the host cell genome via horizontal gene transfer finally become
more recombinant to generate virulence of pathogen. The hypothesis of this phenomenon is to
acquire higher resistance towards host defense system by increasing “pathogen virulence factor
synthesis”. This acquisition of genomic integration of conjugate plasmid or “transposon” is
useful to obtain knowledge about the pathogen nature & pathogen interaction with host cell
finally enables to synthesize vaccines via bacterial genetic research etc.
Horizontal gene transfer takes place between bacteria by transferring plasmids and transposons
to transfer both pathogenicity and antibiotic resistance properties carrying genes to non-
pathogenic, antibiotic-susceptible bacteria..
A population of 1000 dung beetles was split into live populations whe.pdfarihantkitchenmart
A population of 1000 dung beetles was split into live populations when irrigation canals were
built through their habitat. The five new populations were called the Northern, Southern,
Southern, Eastern, Western, and Central populations. Each new population consisted of about
200 individuals. The five populations continued to evolve, and n migration occurred among
populations. One hundred generations later, each population still has about 200 individuals, and a
biology Each population would probably have fewer allies that is, versions of gones than it
would have had 100 generations ago. Agree Disagree Each population would probably gain
new mutations through genetic drift. Agree Desagree Would\'s biologist agree ordisagree with
the following statements In the smaller populations of 20 individuals, the processes leading to
genetic crift could have a stroger influence on a gene than natural selection Agree Disagree
Chance survical of some individulas occurmed in some generations, but no every generation.
Agree Disagree All species of during beetles lay their eggs in bells in during Long lege allow
the beetles to create better during balls which improves reproductive success. Long legs were
common before the canals were bult. However, after the populations were separated became less
common in the most southern population. Would the biologist agree or disagree with the
following explanations An increase in the proportion of beetles with short legs occurred because
natural selection favored individuals with shorter legs. Agree Disagree Since there was no
migration there could be no genetic drift. Agree Disagree A disorder that causes
nearsightedness is caused by a genetic multaion. Nearsighledness was harmful to people living
on a small island because the island. Before the storm, 0.1 % of the people had this disorder. Of
the 50 people who survived the storm, 2% were nearshigted. Within a few generations, 10% of
the islanders were nearsighted. Nearsightedness must have become more common thought
natural selection. Agree Disagree Near-sightedness must have become more common though
people migrating from neighboring islands. Agree Disagree Nearsighledriess must common
through migrating from neighboring islards. Agree Disagree Nearsighteclness must have
become more common through new mutations. Agree Disagree
Solution
Answer 12- Agreed to this statement as greater variation will occur due to mutation, climatic and
environmental changes over a long period of time. So only few adaptic variation were found
among five population.
Answer 13-Agreed . Yes number of alleles will remain same .
Answer 14-Agreed. Variation may occur through long time gap. Genetic drift will cause
mutation and result in variation among 5 population.
Answer 15- Agreed. As genetic drift will have more influence than natural selection as it a
slower process than genitic drift.
Answer 16- Agreed. Similar features existed among these population , so number of death of
individual remai.
Which of these sentences are TRUE in Java Select all that apply, You.pdfarihantkitchenmart
Which of these sentences are TRUE in Java? Select all that apply, You can create an instance of
an Interface Given a class, you can extend multiple classes Given a class, you can implement
multiple interfaces You can add a default behavior to an Abstract method
Solution
-3) given class we can implement multiple interfaces
Is true
Only one option is true
- 1) is false we can create only interface reference variable
2) we cannot extend multiple classes
4) no behavior should be in abstract method.
Which of the following is a stated principle of a NYSE report identi.pdfarihantkitchenmart
Which of the following is a stated principle of a NYSE report identifying key core governance
principles?
Members of the Board of Directors should be primarily independent members.
Effective corporate governance should be viewed as a compliance obligation.
Effective corporate governance should be integrated with the company’s business strategy.
The Board of Directors has the primary responsibility for creating a culture of integrity and
ethical behavior.
Solution
Ans: option c
Reason : ONE OF THE 10 KEY GOVERNANCE PRINCIPLE STATED IN NYSE REPORT
STATED THAT effective corporate governance should be taken as integrated business strategy
rather than a compliance obligation..
Why do some elderly take B12 sublingually or transdermally Provide .pdfarihantkitchenmart
Why do some elderly take B12 sublingually or transdermally? Provide a detailed answer with
research to back it up. Cite your source.
Solution
The oral route of administration of vitamin -B12 (cynacobalamin) has poor absorption rates in
older senior citizens during the treatment of pernicious anemia whereas intramuscular route of
administration is going to cause severe pain finally inflammation or wound, which is likely take
longer time to heal (if they have diabetes). So that it is essential to provide them sublingual
tablets or transdermal B12 patches to provide them a better absorption into direct \"blood
transport\". This is because sublingual route has associated with direct exposure of blood
capillaries so that promotes easy absorption.
Why is water a more hospitable environment for life than dry land O.pdfarihantkitchenmart
Why is water a more hospitable environment for life than dry land? Osmotic balance is not a
problem Gravity is not a problem. Sperm can meet egg easily in water. Oxygen is more
available in water. B and C only. Angiosperms disperse their seeds by producing seeds. Fleshy
edible fruits that are consumed by animals which defecate the Seeds that sometimes attach to
animals. Seeds that catch the wind. All of the choices are correct. None of the choices are
correct. Tracheal system for gas exchange is found in which organism? Crustacean Earthworm.
Insect. Jellyfish. Vertebrate What is a radula? A flexible supportive rod on the dorsal surface
of chordates. A stinging cell used by sea anemones to capture prey. A locomotory structure in
sea stars. A spiny ribbon of tissues used for feeding in snails. A gas exchange structure in
insects. Which of the following adaptations allowed reptiles to complete their life cycles on
land? Lungs. Endothermic metabolism. An amniotic egg. Four legs. Pack behavior. What
class of the phylum Cnidarian occurs only as a polyp? Hydrozoa. Scyphozoan. Anthozoa.
Only A are correct. A, B, and Care correct.
Solution
The third option is correct. Water is a good source for pollination or spreading of gametes.
The option D is correct. Angiosperms are evolved advanced and have various types of
pollination system. This helps the greater availability of them.
The option C is correct. Insects have advance type of tracheal based respiratory system.
The option D is correct. Radula is a hard anatomical structure used for feeding by scraping or
cutting food. This is characteristic of Mollusca phylum.
The option A is correct. Lungs are importantly developed in reptiles to live in land.
The option D is correct. Hydrozoa a class of Cnidaria are always polyp..
Which of the following triploblastic invertebrates is incorrectly ma.pdfarihantkitchenmart
Which of the following triploblastic invertebrates is incorrectly matched with the type of body
cavity it possesses?
a) Pseudocoelomate - Flatworm
b) Coelomate - Annelida
c) Acoelomate - Platyhelminthe
d) Pseudocoelomate - Nematoda
e) Coelomate - Earthworm
Solution
Answer: a) Pseudocoelomate - Flatworm
Reason:
Trematodes:
Flatworm are coelomates and trematodes are belongs to flatworms & triploblastic with a true
body cavity but not a pseudocoelom
These are flatworms and living as internal parasites inside the molluscans, some vertebrates. The
life cycle involves two hosts as described below..
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
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.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
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.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
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.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
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.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
1.4 modern child centered education - mahatma gandhi-2.pptx
What are abstract classes Dont interfaces also allow for polymo.pdf
1. What are abstract classes?
Don't interfaces also allow for polymorphism? If so, what is the difference between abstract
classes and interfaces? Which would you choose when?
Solution
(i)
Abstract class:
abstract class is a class that is declared abstract.
-It may include or may not include abstract method.
-It can be subclassed ,but cannot be instantiated.
-A abstract method is a method that is declared without an implementation.
e.g abstract void drive1()
If a class includes abstract methods,then the class declare itself as abstract.
e.g
public abstract class DriveCar {
abstract void drive1();
}
(ii)
Interface allow polymorphism.It formalize polymorphism.
If two elements realizes the same interface,then only these are polymorphic w.r.t a set of
behaviors .
It gives good description of working of polymorphism & allows us to define polymorphism in a
declarative way.
(iii)
Difference between abstract classes & interfaces:
It can extent only one class or one abstract class at a time.
It can have abstract and non-abstract methods.
(iv)
We would use abstract class in the following scenerio:
(i)When we want to use inheritance as it provides a common base class implementation to
derived classes.
(ii)When we want to declare non-public method as Interface has all methods as public only.
2. (iii)When we want to add methods in future because if you add a method to interface,then all of
the classes that are already implemented ,needed to be changed.
We would use interface in the following scenerio:
Interface is used when we need to implement multiple inheritance.Abstract ClassInterface
It can extent only one class or one abstract class at a time.
It can extent any number of interfaces at a time.
It can have abstract and non-abstract methods.
It can have only abstract methods.It can have protected ,public abstract methods.It can have only
public abstract method.abstract keyword is used to declare it.interface keyword is used to declare
itA class can extent only one abstract class.
A class can implement any number of interfacesIt can be inherited by a class or an abstract class.
It can be extended only by interfaces.Classes has to implement them instead of extend.
It can have static methods,main methodds and constructor.
It can't have static methods,main methodds and constructor.
