Question

name the operator used with cout in C++​

Answer 1

Answer:

An operator is a symbol used for performing operations on operands. An operator operates operands. The operations can be mathematical or logical. There are different types of operators in C++ for performing different operations.

Consider the following operation:

a = x + y;

In the above statement, x and y are the operands while + is an addition operator. When the C++ compiler encounters the above statement, it will add x and y and store the result in variable a.

Answer 2

the operator that is used with cout in c++ is << . it's is called as insertion operator,that is used to print the output .

Explanation:

<< the operation is called as insertion operation as it inserts output onto the screen.

for example, consider the a sample program

//program to print first n natural numbers

#include<iostream.h>

#include<conio.h>

void main(){

int a,i;

clrscr();

cout<<"enter how many natural numbers?";

cin>>a;

cout<<"first <<a<<natural numbers are:"<<endl;

for(i=1;i<=ai++)

cout<<i<<endl;

getch();}

here cout<<"enter how many natural numbers?";

display enter how many natural numbers? on the output screen.

here,cout is a output statement that is used in order to output a value,for this we want to use insertion operator << with this.

similarly we also extraction operator that is generally use with the cin ,the input statement used inorder to input a value or to store a value from user to a variable.

we uses >> extraction operator with cin.

Definitions

• It was Bjarne stroustrup developed c++ in AT &BELL laboratories in USA . He founded that c was lacking some simulations and decided to extend the language by adding features from OOP(Object Oriented Language),basically it was named as c with classes,later it was renamed as C++.Therefore C++ is an extension to the C by adding features of OOP.
• C has keywords like cin and cout ,the meaning and working of these keywords are known for the compiler.
• Operator are which operate upon operands,there are operators like

1. Arithmetical operators
2. Relatioal operators
3. Logical operators
4. Assignment operators
5. Increment and Decrement operators
6. Conditional operators.

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