Name some function of Scanner class.

Name some function of Scanner class.
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1 Answer

Answer :

A: next(), nextInt(), hasNextInt() etc.
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Related questions

Name some other concepts related to Scanner/StringTokenizer

Description : Name some other concepts related to Scanner/StringTokenizer

Last Answer : A: Scanner class, StringTokenizer class, split() function.

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.

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.

Name some function of StringTokenizer class.

Description : Name some function of StringTokenizer class.

Last Answer : A: nextToken(), countToken(), hasMoreTokens() etc.

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.

State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

Description : State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

Last Answer : B) True, False

State true of false. i) We cannot make the function inline by defining a function outside the class. ii) A member function can be called by using its name inside another member function of the same class, this is known as nesting of member function. A) True, True B) True, False C) False, True D) False, False

Description : State true of false. i) We cannot make the function inline by defining a function outside the class. ii) A member function can be called by using its name inside another member function of the same class, this ... of member function. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

Which of the following cannot be passed to a function? A) Reference variable B) Arrays C) Class objects D) Header files

Description : Which of the following cannot be passed to a function? A) Reference variable B) Arrays C) Class objects D) Header files

Last Answer : D) Header files

When a function is defined inside a class, this function is called …………. A) Inside function B) Class function C) Inline function D) Interior function

Description : When a function is defined inside a class, this function is called …………. A) Inside function B) Class function C) Inline function D) Interior function

Last Answer : C) Inline function

Which of the following differentiates between overloaded functions and overridden functions ? (A) Overloading is a dynamic or runtime binding and overridden is a static or compile time binding. (B) Overloading is a static or compile time binding and overriding is dynamic or runtime binding. (C) Redefining a function in a friend class is called overloading, while redefining a function in a derived class is called as overridden function. (D) Redefining a function in a derived class is called function overloading, while redefining a function in a friend class is called function overriding.

Description : Which of the following differentiates between overloaded functions and overridden functions ? (A) Overloading is a dynamic or runtime binding and overridden is a static or compile time binding. ... function overloading, while redefining a function in a friend class is called function overriding.

Last Answer : (B) Overloading is a static or compile time binding and overriding is dynamic or runtime binding.

Which of the following is not a member of class ? (A) Static function (B) Friend function (C) Const function (D) Virtual function

Description : Which of the following is not a member of class ? (A) Static function (B) Friend function (C) Const function (D) Virtual function

Last Answer : (B) Friend function

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

If a function is friend of a class, which one of the following is wrong ? (A) A function can only be declared a friend by a class itself. (B) Friend functions are not members of a class, they are associated with it. (C) Friend functions are members of a class. (D) It can have access to all members of the class, even private ones.

Description : If a function is friend of a class, which one of the following is wrong ? (A) A function can only be declared a friend by a class itself. (B) Friend functions are not members of a class, they are ... are members of a class. (D) It can have access to all members of the class, even private ones.

Last Answer : (C) Friend functions are members of a class.

What is a scanner and what is the function of a scanner ?

Description : What is a scanner and what is the function of a scanner ?

Last Answer : This is an input device. Scanners are used to input any image or text into a computer and perform modifications , modifications, etc. on it. The scanner is a light sensitive device , much ... Handheld scanner, Flat-bad scanner and Drum scanner . Flatbed scanners are more commonly used in computers.

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.

What are wrapper class?

Description : What are wrapper class?

Last Answer : A wrapper class is a class which wraps (encloses) around a data type and gives it an object appearance. Wherever, the data type is required as an object, this object can be used.

What is a class variable?

Description : What is a class variable?

Last Answer : A: Instance variables having the keyword ‘static’ before it is a class variable. For every object there is just one copy of the variable made.

Can a package be called as a class?

Description : Can a package be called as a class?

Last Answer : A: Yes, Package is actually a class present in java.lang package.

What is a class?

Description : What is a class?

Last Answer : A: A class is a blueprint or prototype from which objects are created.

State true of false. i) Public can only be assigned to class ii) Protected protects a statement iii) Protected method is never accessible outside the package iv) Friendly variable may be accessible outside class A) i-true, ii-true, iii-false, 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 of false. i) Public can only be assigned to class ii) Protected protects a statement iii) Protected method is never accessible outside the package iv) Friendly variable may be accessible outside class A) 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

Each method in a java class must have a unique name . A) Not necessary B) True C) False D) None of the above

Description : Each method in a java class must have a unique name . A) Not necessary B) True C) False D) None of the above

Last Answer : A) Not necessary

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

Using which keyword we can access value of the instance variables and class variables of that class inside the method of that class itself. A) super B) final C) this D) either super or this

Description : Using which keyword we can access value of the instance variables and class variables of that class inside the method of that class itself. A) super B) final C) this D) either super or this

Last Answer : C) this

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.

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

Which of the following methods belong to the string class? A) length( ) B) compare To ( ) C) equals ( ) D) All of them

Description : Which of the following methods belong to the string class? A) length( ) B) compare To ( ) C) equals ( ) D) All of them

Last Answer : D) All of them

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.

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

Which of the following methods belong to the string class? A) length( ) B) compare To ( ) C) equals ( ) D) All of them

Description : Which of the following methods belong to the string class? A) length( ) B) compare To ( ) C) equals ( ) D) All of them

Last Answer : D) All of them

The class string belongs to ................... package. A) java.awt B) java.lang C) java.applet D) java.string

Description : The class string belongs to ................... package. A) java.awt B) java.lang C) java.applet D) java.string

Last Answer : B) java.lang

The class at the top of exception class hierarchy is .......................... A) ArithmeticException B) Throwable C) Class D) Exception

Description : The class at the top of exception class hierarchy is .......................... A) ArithmeticException B) Throwable C) Class D) Exception

Last Answer : B) Throwable

...................... 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

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

State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Description : State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

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

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

State true of false. i) AWT is an extended version of swing ii) Paint( ) of Applet class cannot be overridden A) i-false, ii-false B) i-false,ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true of false. i) AWT is an extended version of swing ii) Paint( ) of Applet class cannot be overridden A) i-false, ii-false B) i-false,ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : A) i-false, ii-false

When a program class implements an interface, it must provide behavior for A) two methods defined in that interface B) any methods in a class C) only certain methods in that interface D) all methods defined in that interface

Description : When a program class implements an interface, it must provide behavior for A) two methods defined in that interface B) any methods in a class C) only certain methods in that interface D) all methods defined in that interface

Last Answer : D) all methods defined in that interface

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

Native – protocol pure Java converts ……….. into the ………… used by DBMSs directly. A) JDBC calls, network protocol B) ODBC class, network protocol C) ODBC class, user call D) JDBC calls, user call

Description : Native – protocol pure Java converts ……….. into the ………… used by DBMSs directly. A) JDBC calls, network protocol B) ODBC class, network protocol C) ODBC class, user call D) JDBC calls, user call

Last Answer : A) JDBC calls, network protocol

Which is the root class of all AWT events A) java.awt.ActionEvent B) java.awt.AWTEvent C) java.awt.event.AWTEvent D) java.awt.event.Event

Description : Which is the root class of all AWT events A) java.awt.ActionEvent B) java.awt.AWTEvent C) java.awt.event.AWTEvent D) java.awt.event.Event

Last Answer : B) java.awt.AWTEvent

…………. 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

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

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

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

Last Answer : C) Meta Class

The major goal of inheritance in C++ is A) To facilitate the conversion of data types B) To help modular programming C) To facilitate the reusability of code D) To extend the capabilities of a class

Description : The major goal of inheritance in C++ is A) To facilitate the conversion of data types B) To help modular programming C) To facilitate the reusability of code D) To extend the capabilities of a class

Last Answer : D) To extend the capabilities of a class

Which of the following keywords are used to control access to a class member? A) default B) break C) protected D) goto

Description : Which of the following keywords are used to control access to a class member? A) default B) break C) protected D) goto

Last Answer : C) protected

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

…………… is a way to bind the data and its associated functions together which allows the data and functions to be hidden. A) Structure B) Class C) Enum D) Both A and B

Description : …………… is a way to bind the data and its associated functions together which allows the data and functions to be hidden. A) Structure B) Class C) Enum D) Both A and B

Last Answer : B) Class

C++ is an extension of C with a major addition of the class construct feature of …………….. A) Simula67 B) Simula57 C) Simula47 D) Simula87

Description : C++ is an extension of C with a major addition of the class construct feature of …………….. A) Simula67 B) Simula57 C) Simula47 D) Simula87

Last Answer : A) Simula67

Which of the following statement is true? i) An address with all bits 1 is interpreted as all networks or all hosts. ii) The class A network 128.0.0.0 is defined as the loopback network. A) i only B) ii only C) Both A and B D) None of the above

Description : Which of the following statement is true? i) An address with all bits 1 is interpreted as all networks or all hosts. ii) The class A network 128.0.0.0 is defined as the loopback network. A) i only B) ii only C) Both A and B D) None of the above

Last Answer : A) i only

State the following statement is true or false. i) In class B addresses a total of more than 1 billion addresses can be formed. ii) Class E addresses are reserved for future or experimental use. A) True, False B) True, True C) False, True D) False, False

Description : State the following statement is true or false. i) In class B addresses a total of more than 1 billion addresses can be formed. ii) Class E addresses are reserved for future or experimental use. A) True, False B) True, True C) False, True D) False, False

Last Answer : B) True, True