1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novosadov [1.4K]
3 years ago
11

We have to calculate the percentage of marks obtained in three subjects (each out of 100) by student A and in four subjects (eac

h out of 100) by student B. Create an abstract class 'Marks' with an abstract method 'getPercentage'. It is inherited by two other classes 'A' and 'B' each having a method with the same name which returns the percentage of the students. The constructor of student A takes the marks in three subjects as its parameters and the marks in four subjects as its parameters for student B. Create an object for eac of the two classes and print the percentage of marks for both the students.
Computers and Technology
1 answer:
MAXImum [283]3 years ago
6 0

Answer:

abstract class Mark  //Creating an Abstract class{

abstract double getPercentage();}

class A extends Mark{

double result;

A( int val1, int val2, int val3){

 result=(val1+val2+val3)/3;}

double getPercentage(){

 return result;}}

class B extends Mark{

double result;

B(int val1, int val2, int val3, int val4){

 result=(val1+val2+val3+val4)/4;}

double getPercentage(){

 return result;}}

class Main{

public static void main(String args[]){

 //class A Object

 Mark obj_1=new A(10,20,30);

 System.out.println(obj_1.getPercentage());

 //class B Object

 Mark obj_2=new B(10,20,38,46);

 System.out.println(obj_2.getPercentage());}}

You might be interested in
failure of the _ cylinder will often result in sudden unexpected loss of the ability to stop the vehicle
grin007 [14]

Failure of the <u>Brake master </u>cylinder will often result in sudden unexpected loss of the ability to stop the vehicle

<u>Explanation:</u>

The ability to stop the vehicle lies with the Brakes. If brakes of a vehicle do not work properly then it might become difficult to stop the vehicle. This happens when a cylinder called brake master cylinder fails.

The brake master cylinder might not work properly with the passage of time or it can form internal leaks. This is the master cylinder and it controls other cylinders in a vehicle. Its failure affect the brakes badly, it will be unsafe to drive such a vehicle.

5 0
3 years ago
Determine whether or not the following pairs of predicates are unifiable. If they are, give the most-general unifier and show th
Evgen [1.6K]

Answer:

a) P(B,A,B), P(x,y,z)

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }.

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q.

c. Older(Father(y),y), Older(Father(x),John)

Thus , mgu ={ y/x , x/John }.

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B.

e) P(f(x), x, g(x)), P(f(y), A, z)    

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

Explanation:  

Unification: Any substitution that makes two expressions equal is called a unifier.  

a) P(B,A,B), P(x,y,z)  

Use { x/B}  

=> P(B,A,B) , P(B,y,z)  

Now use {y/A}  

=> P(B,A,B) , P(B,A,z)  

Now, use {z/B}  

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }  

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q  

c. Older(Father(y),y), Older(Father(x),John)  

Use {y/x}  

=> Older(Father(x),x), Older(Father(x),John)  

Now use { x/John }  

=> Older(Father(John), John), Older(Father(John), John)  

Thus , mgu ={ y/x , x/John }  

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))  

Use { y/x }  

=> Q(G(x,z),G(z,x)), Q(G(x,x),G(A,B))

Use {z/x}  

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B  

e) P(f(x), x, g(x)), P(f(y), A, z)  

Use {x/y}  

=> P(f(y), y, g(y)), P(f(y), A, z)  

Now use {z/g(y)}  

P(f(y), y, g(y)), P(f(y), A, g(y))  

Now use {y/A}  

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

7 0
3 years ago
Shadow and highlight create depth (3D).<br> TRUE OR FALSE
tamaranim1 [39]

Answer:

true because then it would be like not popping out

7 0
2 years ago
An excel file called “student_gpa” is opened. What does the funnel next to “GPA” indicate
Ivan

Answer is A. The data has been filtered

The funnel in Excel lets you know that there is a filter in place on the columns. It is a filter icon. By default, any filtered column in Excel gets a little funnel icon on the top row as shown in the image attached. Once this funnel symbols is clicked, it gives you options to filter using several criteria.

6 0
3 years ago
You wrote a program to allow the user to guess a number. Complete the code to generate a random integer from one to 10.
just olya [345]

Answer:

randint

Explanation:

Just did my quiz and got a 100%

7 0
3 years ago
Read 2 more answers
Other questions:
  • The _____ is the area in Microsoft Excel where you can perform file commands such as Save, Open, and Print
    15·1 answer
  • 15. The text of a desktop publishing document is often created using
    6·2 answers
  • Who would use a CLI? (Command Line Interface)
    9·1 answer
  • What is the name of the advanced warrior race of robots in Doctor Who?
    10·2 answers
  • In Excel, you can sort a table by one or more columns by.
    7·1 answer
  • FOR DIGITAL DESIGN/ PHOTOGRAPHY
    5·2 answers
  • 1 point
    5·2 answers
  • If 209g of ethanol are used up in a combustion process, calculator the volume of oxygen used for the combustion at stp​
    5·1 answer
  • Which image file format consumes the most file<br> space?<br> 0<br> GIF<br> JPEG<br> PNG
    7·1 answer
  • Which code snippet is the correct way to rewrite this in Semantic HTML?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!