A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class

A ………………. Is a class whose instances themselves are classes.
A) Subclass
B) Abstract Class
C) Meta Class
D) Object Class
by

1 Answer

Answer :

C) Meta Class
by

Related questions

Which of the following statement(s) with regard to an abstract class in JAVA is/are TRUE? I. An abstract class is one that is not used to create objects. II. An abstract class is designed only to act as a base class to be inherited by other classes. (1) Only l (2) Only II (3) Neither I nor II (4) Both l and II

Description : Which of the following statement(s) with regard to an abstract class in JAVA is/are TRUE? I. An abstract class is one that is not used to create objects. II. An abstract class is designed only to act as a base class ... by other classes. (1) Only l (2) Only II (3) Neither I nor II (4) Both l and II

Last Answer : Both l and II

Specialization Lattice stands for (A) An entity type can participate as a subclass in only one specialization. (B) An entity type can participate as a subclass in more than one specialization. (C) An entity type that can participate in one specialization. (D) An entity type that can participate in one generalization.

Description : Specialization Lattice stands for (A) An entity type can participate as a subclass in only one specialization. (B) An entity type can participate as a subclass in more than one specialization. ... can participate in one specialization. (D) An entity type that can participate in one generalization.

Last Answer : (B) An entity type can participate as a subclass in more than one specialization.

When a method in a subclass has the same name and type signatures as a method in the superclass, then the method in the subclass .................. the method in the superclass. (A) Overloads (B) Friendships (C) Inherits (D) Overrides

Description : When a method in a subclass has the same name and type signatures as a method in the superclass, then the method in the subclass .................. the method in the superclass. (A) Overloads (B) Friendships (C) Inherits (D) Overrides

Last Answer : (D) Overrides

Which of the following statements is true (A) Abstract data types are the same as classes (B) Abstract data types do not allow inheritance (C) Classes cannot inherit from the same base class (D) Object have state and behavior

Description : Which of the following statements is true (A) Abstract data types are the same as classes (B) Abstract data types do not allow inheritance (C) Classes cannot inherit from the same base class (D) Object have state and behavior

Last Answer : (B) Abstract data types do not allow inheritance

All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Description : All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Last Answer : D) java.awt.Window

The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Description : The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Last Answer : B) inputstream, outputstream

The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Description : The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Last Answer : B) inputstream, outputstream

What is an abstract class?

Description : What is an abstract class?

Last Answer : A: An abstract class is a class that is declared abstract—it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed.

Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Description : Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Last Answer : D) an interface that defines methods to read primitive data types.

Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Description : Data input is A) an abstract class defined in java.io B) a class we can use to read primitive data types C) an interface that defines methods to open files. D) an interface that defines methods to read primitive data types.

Last Answer : D) an interface that defines methods to read primitive data types.

State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : C) i-true, ii-false

Which of the following is/are correct with reference to Abstract class and interface ? (a) A class can inherit only one Abstract class but may inherit several interfaces. (b) An Abstract class can provide complete and default code but an interface has no code. Codes : (A) (a) is true (B) (b) is true (C) Both (a) and (b) are true (D) Neither (a) nor (b) is true

Description : Which of the following is/are correct with reference to Abstract class and interface ? (a) A class can inherit only one Abstract class but may inherit several interfaces. (b) An Abstract class can provide complete and default ... true (C) Both (a) and (b) are true (D) Neither (a) nor (b) is true

Last Answer : Answer: C

Which of the following is used to make an Abstract class ? (A) Making atleast one member function as pure virtual function (B) Making atleast one member function as virtual function (C) Declaring as Abstract class using virtual keyword (D) Declaring as Abstract class using static keyword

Description : Which of the following is used to make an Abstract class ? (A) Making atleast one member function as pure virtual function (B) Making atleast one member function as virtual function (C) Declaring as Abstract class using virtual keyword (D) Declaring as Abstract class using static keyword

Last Answer : (A) Making atleast one member function as pure virtual function

Which of the following statements is correct? (A) Every class containing abstract method must not be declared abstract. (B) Abstract class cannot be directly initiated with ‘new’ operator. (C) Abstract class cannot be initiated. (D) Abstract class contains definition of implementation.

Description : Which of the following statements is correct? (A) Every class containing abstract method must not be declared abstract. (B) Abstract class cannot be directly initiated with ‘new’ operator. (C) Abstract class cannot be initiated. (D) Abstract class contains definition of implementation.

Last Answer : Answer: B,C

Suppose there are four processes in execution with 12 instances of a Resource R in a system. The maximum need of each process and current allocation are given below: Image With reference to current allocation, is system safe? If so, what is the safe sequence? (A) No (B) Yes, P1 P2 P3 P4 (C) Yes, P4 P3 P1 P2 (D) Yes, P2 P1 P3 P4

Description : Suppose there are four processes in execution with 12 instances of a Resource R in a system. The maximum need of each process and current allocation are given below: With reference to current allocation, is system safe? If so, ... B) Yes, P1 P2 P3 P4 (C) Yes, P4 P3 P1 P2 (D) Yes, P2 P1 P3 P4

Last Answer : (C) Yes, P4 P3 P1 P2

Repository of information gathered from multiple sources, storing under unified scheme at a single site is called as (A) Data mining (B) Meta data (C) Data warehousing (D) Database

Description : Repository of information gathered from multiple sources, storing under unified scheme at a single site is called as (A) Data mining (B) Meta data (C) Data warehousing (D) Database

Last Answer : (C) Data warehousing

Subclass is also called: a) Base Class b) Child Class c) Derived Class and Super Class d) Child Class and Derived Class e) None of The Above

Description : Subclass is also called: a) Base Class b) Child Class c) Derived Class and Super Class d) Child Class and Derived Class e) None of The Above

Last Answer : d) Child Class and Derived Class

Are constructors inherited? Can a subclass call the parent's class constructor? When?

Description : Are constructors inherited? Can a subclass call the parent's class constructor? When?

Last Answer : Ans. You cannot inherit a constructor. That is, you cannot create a instance of a subclass using a constructor of one of it's superclasses. One of the main reasons is because ... developer the ability to override a superclasses constructor you would erode the encapsulation abilities of the language.

State true or false. i) Jpanel is a class included in awt package. ii) Anonymous classes are mostly used for event handling. iii) Names of anonymous classes must be unique iv) JOptionPane is an inner class A) i-false, ii-false, iii-true, iv-true B) i-true, ii-false, iii-true, iv-false C) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Description : State true or false. i) Jpanel is a class included in awt package. ii) Anonymous classes are mostly used for event handling. iii) Names of anonymous classes must be unique iv) JOptionPane is an inner class A) i-false ... ) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : C) i-false, ii-true, iii-false, iv-false

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

…………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Description : …………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Last Answer : A) Inheritance

Consider the two class classification task that consists of the following points: Class C1: [1 1.5] [1 -1.5] Class C2: [-2 2.5] [-2 -2.5] The decision boundary between the two classes using single perceptron is given by: (A) x1+x2+1.5=0 (B) x1+x2-1.5=0 (C) x1+1.5=0 (D) x1-1.5=0

Description : Consider the two class classification task that consists of the following points: Class C1: [1 1.5] [1 -1.5] Class C2: [-2 2.5] [-2 -2.5] The decision boundary between the two classes using single perceptron is given by: (A) x1+x2+1.5=0 (B) x1+x2-1.5=0 (C) x1+1.5=0 (D) x1-1.5=0

Last Answer : (C) x1+1.5=0 

It is possible to define a class within a class termed as nested class. There are ............ types of nested classes. (A) 2 (B) 3 (C) 4 (D) 5

Description : It is possible to define a class within a class termed as nested class. There are ............ types of nested classes. (A) 2 (B) 3 (C) 4 (D) 5

Last Answer : Answer: A, C

...................... of a remotely accessible object must implement ................ A) all methods, RemoteException B) class, RemoteException C) class, RemoteInterface D) all methods, RemoteInterface

Description : ...................... of a remotely accessible object must implement ................ A) all methods, RemoteException B) class, RemoteException C) class, RemoteInterface D) all methods, RemoteInterface

Last Answer : C) class, RemoteInterface

The out object is an object encapsulated inside the ................. class, and represents the standard output device. A) standard B) local C) globlal D) system

Description : The out object is an object encapsulated inside the ................. class, and represents the standard output device. A) standard B) local C) globlal D) system

Last Answer : D) system

A ……………. takes a reference to an object of the same class as itself as an argument. A) Reference constructor B) Copy Constructor C) Self Constructor

Description : A ……………. takes a reference to an object of the same class as itself as an argument. A) Reference constructor B) Copy Constructor C) Self Constructor

Last Answer : B) Copy Constructor

Which of the following is/ are the characteristics of friend function. A) It is not in the scope of the class to which it has been declared as friend. B) It can invoke like a normal function without the help of any object. C) Usually, it has the objects as arguments. D) All of the above.

Description : Which of the following is/ are the characteristics of friend function. A) It is not in the scope of the class to which it has been declared as friend. B) It can invoke like a normal function without the help of any object. C) Usually, it has the objects as arguments. D) All of the above.

Last Answer : D) All of the above.

Which of the following is true about the static member variable in C++. i) It is initialized to zero when the first object of its class is created. Other initialization is also permitted. ii) It is visible only within the class, but its lifetime is the entire program. A) i-True, ii-True B) ii-False, ii-True C) i-True, ii-False D) i-False, iii-False

Description : Which of the following is true about the static member variable in C++. i) It is initialized to zero when the first object of its class is created. Other initialization is also permitted. ii) It is visible only within ... , ii-True B) ii-False, ii-True C) i-True, ii-False D) i-False, iii-False

Last Answer : B) ii-False, ii-True

What is an abstract method?

Description : What is an abstract method?

Last Answer : A: An abstract method is a method that is declared without an implementation (without braces, and followed by a semicolon), like this: abstract void point(double x, double y);

In java, string is a ............. A) primitive data type B) abstract data type C) combination of boolean D) None of the above

Description : In java, string is a ............. A) primitive data type B) abstract data type C) combination of boolean D) None of the above

Last Answer : B) abstract data type

Which of the following is true about the characteristics of abstract data types? i) It exports a type. ii) It exports a set of operations A) True, False B) False, True C) True, True D) False, False

Description : Which of the following is true about the characteristics of abstract data types? i) It exports a type. ii) It exports a set of operations A) True, False B) False, True C) True, True D) False, False

Last Answer : C) True, True

……………….. level is where the model becomes compatible executable code A) Abstract level B) Application level C) Implementation level D) All of the above

Description : ……………….. level is where the model becomes compatible executable code A) Abstract level B) Application level C) Implementation level D) All of the above

Last Answer : C) Implementation level

Which if the following is/are the levels of implementation of data structure A) Abstract level B) Application level C) Implementation level D) All of the above

Description : Which if the following is/are the levels of implementation of data structure A) Abstract level B) Application level C) Implementation level D) All of the above

Last Answer : D) All of the above

Sesame Street is introducing a new character whose father is in prison. Good or Bad? Is there a meta-message?

Description : Sesame Street is introducing a new character whose father is in prison. Good or Bad? Is there a meta-message?

Last Answer : Just like all of those kiddos who were influenced by Bert and Ernie living together and decided to be gay because it’s normal, I suspect we’ll see in increase in crime because a show will be representing prison as normal~.

Which of the following is/are the functions of operating system? i) Sharing hardware among users. ii) Allowing users to share data among themselves. iii) Recovering from errors. iv) Preventing users from interfering with one another. v) Scheduling resources among users. A) i, ii, iii and iv only B) ii, iii, iv and v only C) i, iii, iv and v only D) All i, ii, iii, iv and v

Description : Which of the following is/are the functions of operating system? i) Sharing hardware among users. ii) Allowing users to share data among themselves. iii) Recovering from errors. iv) Preventing users from interfering with one another. ... only C) i, iii, iv and v only D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v

Most abundant Ig G subclass in the serum is (A) Ig G1 (B) Ig G2 (C) Ig G3 (D) Ig G4

Description : Most abundant Ig G subclass in the serum is (A) Ig G1 (B) Ig G2 (C) Ig G3 (D) Ig G4

Last Answer : Answer : A

Lice are categorized in subclass as: B A. Apterygota B. Exopterygota C. Endopterygota D. None of these

Description : Lice are categorized in subclass as: B A. Apterygota B. Exopterygota C. Endopterygota D. None of these

Last Answer : Exopterygota

Larvae of subclass monogenea are A A. Similar in appearance to adult B. Different in appearance to adults C. Miniature of mature tapeworm D. None

Description : Larvae of subclass monogenea are A A. Similar in appearance to adult B. Different in appearance to adults C. Miniature of mature tapeworm D. None

Last Answer : Similar in appearance to adult

While there is (are) only _____ way(s) to send paralleldata, there is (are) three subclass(es) of serial transmission. A) one; two B) two; three C) one; three D) none of the above

Description : While there is (are) only _____ way(s) to send paralleldata, there is (are) three subclass(es) of serial transmission. A) one; two B) two; three C) one; three D) none of the above

Last Answer : one; three

________ which is a subclass of a linear programming problem(LPP) a. Programming problem b. Transportation problem c. Computer problem d. All of the above

Description : ________ which is a subclass of a linear programming problem(LPP) a. Programming problem b. Transportation problem c. Computer problem d. All of the above

Last Answer : b. Transportation problem

Which of the following comments about object oriented design of software, is not true ? Objects inherit the properties of class Classes are defined based on the attributes of objects an object can belong to two classes classes are always different

Description : Which of the following comments about object oriented design of software, is not true ? Objects inherit the properties of class Classes are defined based on the attributes of objects an object can belong to two classes classes are always different

Last Answer : an object can belong to two classes

______provides a powerful and natural mechanism for organizing and structuring your software. It also explains how classes inherit state and behavior from their super classes and explains how to derive one class from another using the simple syntax provided by the java programming language: a) Object b) Inheritance c) Class d) None of These

Description : ______provides a powerful and natural mechanism for organizing and structuring your software. It also explains how classes inherit state and behavior from their super classes and explains how to derive one class ... the java programming language: a) Object b) Inheritance c) Class d) None of These

Last Answer : b) Inheritance

In the case of classesToBeBound, the classes assigned to this property, indicate the class (i.e., object) structure that is to be transformed into XML. a) True b) False

Description : In the case of classesToBeBound, the classes assigned to this property, indicate the class (i.e., object) structure that is to be transformed into XML. a) True b) False

Last Answer : True

What is StringTokenizer or Scanner and examples of similar classes (if you used it)

Description : What is StringTokenizer or Scanner and examples of similar classes (if you used it)

Last Answer : A: StringTokenizer or Scanner is a class which splits up any given string into tokens separated by delimiters.

State any two IOException classes.

Description : State any two IOException classes.

Last Answer : A: EOFException and FileNotFoundException.

Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Description : Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Last Answer : A: To include the functions of the Scanner or StringTokenizer class from the java.util package.

A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Description : A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Last Answer : D) classes and interfaces

A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Description : A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Last Answer : D) classes and interfaces