Write a program to overload the ‘—’ unary operator to negate the values.

Write a program to overload the ‘—’ unary operator to negate the values.
by

1 Answer

Answer :

#include<iostream.h>

#include<conio.h>

#include<string.h>

class Number

{

int x,y;

public:

Number (int a, int b)

{

a =x;

b =y;

}

void display()

{

cout<<"value of x=”<<x<<”\n Value of y= ”<<y;

}

void operator - ( )

{

x = - x;

y = - y;

}

};

void main ()

{

Number N1(5,6);

clrscr ();

N1. display ();

-N1;

cout<<"\n After negation:";

N1. display ();

getch ();

}


by

Related questions

Use the concept of operator overloading to overload unary ‘-‘ operator to negate value of variables.

Description : Use the concept of operator overloading to overload unary ‘-‘ operator to negate value of variables.

Last Answer : # include <iostream.h> #include<conio.h> class unary { int x, y, z; public: void getdata (int a, int , int c); void display (void); void operator - (); // overload unary minus. }; ... u. display ( ) ; -u; cout<< " u : " ; u. display ( ) ; }

Write a program for overloading of ++unary operator for inch to feet conversion. 12 inch = 1 feet.

Description : Write a program for overloading of ++unary operator for inch to feet conversion. 12 inch = 1 feet.

Last Answer : #include #include class abc { int i,f; public: abc(int f1,int i1) { f=f1; i=i1; } void operator ++() {  while(i>11)  {  f++;  i=i-12;  }  cout

Write a difference between Unary and Binary Operator

Description : Write a difference between Unary and Binary Operator

Last Answer : Ans. Operators that acts on one operand are referred to as Unary Operators while Binary Operators acts upon two operand Unary + or Unary – , increment/decrement are the example of Unary operator While binary operator +,-,*,/ and % are the example of binary operators , (+) adds values of its operands

Write a C++ program to overload binary operator ‘+’ to concatenate two strings.

Description : Write a C++ program to overload binary operator ‘+’ to concatenate two strings.

Last Answer : #include<iostream.h> #include<conio.h> #include<string.h> class opov  { char str1[10]; public: void getdata() { cout<<"\nEnter a strings"; cin>>str1; } ... ,o2; clrscr(); o1.getdata(); o2.getdata();  o1+o2; getch();  }

Write a program to overload ‘+’ operator to concatenate two strings.

Description : Write a program to overload ‘+’ operator to concatenate two strings.

Last Answer : #include #include #include class string1 { char str[20]; public: void getdata() { coutstr; } void display() { cout

Write a C++ program to overload = = operator to check equality of two strings.

Description : Write a C++ program to overload = = operator to check equality of two strings.

Last Answer : #include<iostream.h> #include<conio.h> #include<string.h> class string { char str1[20]; public: void get() { cout<<"Enter string:"; cin>>str1; } void operator = =( ... ; string s,s1; s.get(); s1.get(); s==s1; getch(); }

Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation. A) i-True, ii-False B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False

Description : Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation. A) i-True, ii-False B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False

Last Answer : C) i-False, ii-True

Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined.

Description : Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined.

Last Answer : (B) a Binary operator.

Explain use of scope resolution operator.

Description : Explain use of scope resolution operator.

Last Answer : It is used to uncover a hidden variable. Scope resolution operator allows access to the global version of a variable. The scope resolution operator is used to refer variable of class anywhere in program. ... outside of class. Return_type class_name:: function_name( ) { Function body }

Write some code to overload an operator.

Description : Write some code to overload an operator. 

Last Answer : class TempleCompare { public int templeCompareID; public int templeValue; public static bool operator == (TempleCompare x, TempleCompare y) { return (x.templeValue == y.templeValue); } ... templeValue); } public override int GetHashCode() { return templeCompareID; } }

Write a program to declare a class ‘book’ containing data members as ‘title’, ‘author-name’, ‘publication’, ‘price’. Accept and display the information for one object using pointer to that object.

Description : Write a program to declare a class ‘book’ containing data members as ‘title’, ‘author-name’, ‘publication’, ‘price’. Accept and display the information for one object using pointer to that object.

Last Answer : #include<iostream.h> #include<conio.h> class book { char author_name[20]; char title[20]; char publication[20]; float price; public: void Accept(); void Display(); }; void ... title \t author_name \t publication \t price\n ; p-> Display(); getch(); }

Write a program that copies contents of one file into another file.

Description : Write a program that copies contents of one file into another file.

Last Answer : Assuming input file to be copied file1.txt contents are “Hello Friends…” and file where the contents need to copy is file2.txt already created  #include #include #include #include #include void main() { clrscr(); ifstream fs; ofstream ft; char ch, fname1[20], fname2[20]; cout

Write a program to implement the following hierarchy using suitable member functions. Refer Figure No.2.

Description : Write a program to implement the following hierarchy using suitable member functions. Refer Figure No.2.

Last Answer : # include <iostream.h> #include<conio.h> class Student { int roll_no; char name[10]; public: void read_studentData() { cout<< Enter student s roll no and name \n ; cin> ... { result r; clrscr(); r.read_result(); r.display_result(); getch(); }

Write a program to count the number of lines in file.

Description : Write a program to count the number of lines in file.

Last Answer : #include<iostream.h> #include<fstream.h> #include<conio.h> void main() { ifstream file; char ch; int n=0; clrscr(); file.open("abc.txt"); while(file) { file. ... \n Number of lines in a file are:"<<n; file.close(); getch(); }

Write a program to sort an 1-d array in ascending order.

Description : Write a program to sort an 1-d array in ascending order.

Last Answer : #include<iostream.h> #include<conio.h> void main() { int arr[20]; int i, j, temp,n; clrscr(); cout<<"\n Enter the array size:"; cin>>n; cout<<"\n Enter ... 0;i<n;i++) {  cout<< \n <<arr[i]; } getch(); }

Write a program to implement single inheritance from the following Refer Figure No.1

Description : Write a program to implement single inheritance from the following Refer Figure No.1

Last Answer : #include #include class employee { protected: int emp_id; char name[10]; }; class emp_info:public employee { int basic_salary; public: void getdata() { coutemp_id; coutname; coutbasic_salary; } void putdata() { cout

Is there anything I can do to negate the colicky effect of cow's milk protein so I can have dairy while I'm breastfeeding?

Description : Is there anything I can do to negate the colicky effect of cow's milk protein so I can have dairy while I'm breastfeeding?

Last Answer : There is a delicious soy milk called Silk. The chocolate is almost sinful! And almond milk, rice milk and ice cream, lots of soy cheese out there.

What is your understanding of Occam's razor, and how exactly does it unequivocally negate all conspiracy theories?

Description : What is your understanding of Occam's razor, and how exactly does it unequivocally negate all conspiracy theories?

Last Answer : It’s pretty simple. Examine your own life and see if it isn’t most often true. (I’d ay more but I am playing poker…be back in a few)

Can CBD oil negate the effects of caffeine?

Description : Can CBD oil negate the effects of caffeine?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Write a program in C++ to overload a „volume‟ function to calculate volume of cube and rectangular box.

Description : Write a program in C++ to overload a „volume‟ function to calculate volume of cube and rectangular box. 

Last Answer : #include<iostream.h> #include<conio.h> void volume(float); void volume(float, float, float); void main() { float a, length, width, height; clrscr(); cout<<"\n ... width*height; cout<<"\n Volume of a rectangular box is:"<<v; }

Write the applications of object oriented programming.

Description : Write the applications of object oriented programming.

Last Answer : Applications of object oriented programming are: 1) Real time systems 2) Simulation and modeling 3) Object-oriented databases 4) Hypertext, hypermedia and expertext 5) AI and expert systems ... and parallel programming 7) Decision support and office automation systems 8) CIM/CAM/CAD systems

Write any four benefits of OOP.

Description : Write any four benefits of OOP. 

Last Answer : Benefits of OOP: 1. We can eliminate redundant code and extend the use of existing classes. 2. We can build programs from the standard working modules that communicate with one another, ... interface descriptions with external systems much simpler. 10. Software complexity can be easily managed.

Write two properties of static member function

Description : Write two properties of static member function

Last Answer : i) A static member function can have access to only other static data members and functions declared in the same class. ii) A static member function can be called using the class name with a scope resolution operator instead of object name as follows: class_name::function_name;

Assertion : Birds have metanephric kidney and no urinary bladder. Reason : South American ostrich has unary bladder .

Description : Assertion : Birds have metanephric kidney and no urinary bladder. Reason : South American ostrich has unary bladder .

Last Answer : Assertion : Birds have metanephric kidney and no urinary bladder. Reason : South American ostrich has ... D. If both Assertion and Reason are false.

Which operation use one operand or unary operations: a. Arithmetic b. Logical c. Both d. None

Description : Which operation use one operand or unary operations: a. Arithmetic b. Logical c. Both d. None

Last Answer : c. Both

What are the unary operations in Relational Algebra?

Description : What are the unary operations in Relational Algebra?

Last Answer : PROJECTION and SELECTION.

………………. Is a directed tree in which outdegree of each node is less than or equal to two. A) Unary tree B) Binary tree C) Dinary tree D) Both B and C

Description : ………………. Is a directed tree in which outdegree of each node is less than or equal to two. A) Unary tree B) Binary tree C) Dinary tree D) Both B and C

Last Answer : B) Binary tree

What is a relationship called when it is maintained between two entities? (A) Unary (B) Binary (C) Ternary (D) Quaternary

Description : What is a relationship called when it is maintained between two entities? (A) Unary (B) Binary (C) Ternary (D) Quaternary

Last Answer : (B) Binary

The operator of electrical motors should keep a constant check on the loads they carry because _____________. A. low loads necessitate frequent insulation cleaning B. exceeding nameplate values shortens useful life C. energy is wasted if full loading is not utilized D. power factor correction methods are load dependent

Description : The operator of electrical motors should keep a constant check on the loads they carry because _____________. A. low loads necessitate frequent insulation cleaning B. exceeding nameplate values shortens ... wasted if full loading is not utilized D. power factor correction methods are load dependent

Last Answer : Answer: B

Explain the friend function with proper example.

Description : Explain the friend function with proper example.

Last Answer : Friend function: The private members of a class cannot be accessed from outside the class but in some situations two classes may need access of each other s private data. So a common function can be declared which can be made friend ... ; } friend void swap(A,B); }; void swap(A a,B b) { cout

What is parameterized constructor?

Description : What is parameterized constructor?

Last Answer : A constructor that accepts parameters is called as parameterized constructor. In some applications, it may be necessary to initialize the various data members of different objects with different values when they are ... an argument. Member function put ( ) displays the value of data member m .

What are the rules for virtual function?

Description : What are the rules for virtual function?

Last Answer : Rules for virtual function: 1. The virtual functions must be members of some class. 2. They cannot be static members. 3. They are accessed by using object pointers. 4. A virtual function can ... virtual function is defined in the base class, it need not be necessarily redefined in the derived class.

What is inheritance? Give different types of inheritance.

Description : What is inheritance? Give different types of inheritance.

Last Answer : Inheritance: The mechanism of deriving new class from an old/existing class is called inheritance. OR Inheritance is the process by which objects of one class acquired the properties of ... is a combination of single, multiple, multilevel and hierarchical inheritance. Diagram:

State the rules for writing destructor function.

Description : State the rules for writing destructor function.

Last Answer : Rules for writing destructor function are: 1) A destructor is a special member function which should destroy the objects that have been created by constructor. 2) Name of destructor and name of the class should ... should not be classified in any types. 7) A class can have at most one destructor. 

Describe ‘this’ pointer with an example.

Description : Describe ‘this’ pointer with an example.

Last Answer : this' pointer:  C++ uses a unique keyword called this to represent an object that invokes a member function. This unique pointer is automatically passed to a member function when it is invoked. ... pointer is used to represent object s when setdata ( ) and putdata ( ) functions are called. 

Describe memory allocation for objects.

Description : Describe memory allocation for objects.

Last Answer : The memory space for object is allocated when they are declared and not when the class is specified. The member functions are created and placed in memory space only once when they are ... are essential because the member variables will hold different data values for different objects.

Give syntax and use of fclose ( ) function.

Description : Give syntax and use of fclose ( ) function.

Last Answer : Syntax:  int fclose(FILE* stream); Use: This function is used to close a file stream. The data that is buffered but not written is flushed to the OS and all unread buffered data is discarded.

Explain virtual base class with suitable example.

Description : Explain virtual base class with suitable example.

Last Answer : Consider a situation where all three kinds of inheritance, namely, multilevel, multiple, hierarchical inheritance, are involved. This illustrated in fig a. the child has two direct base classes, parent1 & ... Grandparent { }; class Child: public Parent1,public Parent2 { };

What is multilevel inheritance? Draw the diagram to show multilevel inheritance. using classes with data member and member function.

Description : What is multilevel inheritance? Draw the diagram to show multilevel inheritance. using classes with data member and member function. 

Last Answer : When a class is derived from another derived class then it is called as multilevel inheritance.

What is a class? Give its example.

Description : What is a class? Give its example. 

Last Answer : Class is a user defined data type that combines data and functions together. It is a collection of objects of similar type. Example: class Student { int rollno; char name[10]; public: void getdata( ); void putdata( ); };

State the difference between OOP and POP.

Description : State the difference between OOP and POP.

Last Answer : OBJECT ORIENTED PROGRAMMING (OOP) PROCEDURE ORIENTED PROGRAMMING (POP) Focus is on data rather than procedure. Focus is on doing things (procedure). Programs are divided into multiple ... approach is used in C++ language. Procedure oriented approach is used in C language.

Personnel who design, program, operates and maintains computer equipment refers to A) Console-operator B) Programmer C) Peopleware D) System Analyst

Description : Personnel who design, program, operates and maintains computer equipment refers to A) Console-operator B) Programmer C) Peopleware D) System Analyst

Last Answer : Answer : C

What does the && operator do in a program code?

Description : What does the && operator do in a program code?

Last Answer : The && is also referred to as AND operator. When using this operator, all conditions specified must be TRUE before the next action can be performed. If you have 10 conditions and all but 1 fails to evaluate as TRUE, the entire condition statement is already evaluated as FALSE.

Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Description : Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Last Answer : Peopleware

Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Description : Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Last Answer : c. Peopleware

Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Description : Personnel who design, program, operate and maintain computer equipment refers to a. Console-operator b. Programmer c. Peopleware d. System Analyst

Last Answer : c. Peopleware

Implement a program to demonstrate logical AND operator.

Description : Implement a program to demonstrate logical AND operator.

Last Answer : #include #include void main() { int i; int j; clrscr(); printf("Enter the values of i and j"); scanf("%d%d",&i,&j); if(i==5 && j==5) { printf("Both i and j are equal to 5"); } else { printf("Both the values are different and either or both are not equal to 5"); } getch(); }

Write a numPy program to create a numPy array with all values as True printed 10 times. -Technology

Description : Write a numPy program to create a numPy array with all values as True printed 10 times. -Technology

Last Answer : This answer was deleted by our moderators...

Write a C++ program to declare a class addition with data members as x and y. Initialize values of x and y with constructor. Calculate addition and display it using function ‘display’.

Description : Write a C++ program to declare a class addition with data members as x and y. Initialize values of x and y with constructor. Calculate addition and display it using function ‘display’.

Last Answer : #include<iostream.h> #include<conio.h> class addition { int x,y; public: addition(int,int); void display(); }; addition::addition (int x1,int y1) { x=x1; y=y1; } void addition: ... y); } void main() { addition a(3,4); a.display(); getch(); }