- C++ Programming Examples
- C++ Programming Examples
- C++: Hello World
- C++: Get Input
- C++: Print Integer
- C++: Add two numbers
- C++: Add, Sub, Multiply, Div
- C++: Add Digits
- C++: Find Average and Percentage
- C++: Find Arithmetic Mean
- C++: Sum of n Natural Numbers
- C++: Sum of n Numbers
- C++: Square's Area and Perimeter
- C++: Rectangle's Area and Perimeter
- C++: Triangle's Area and Perimeter
- C++: Area and Circumference
- C++: Find Simple Interest
- C++: Fahrenheit to Celsius
- C++: Celsius to Fahrenheit
- C++: Print Prime Numbers
- C++: Reverse a Number
- C++: Swap Two Numbers
- C++: Print Multiplication Table
- C++: Find Factorial of a Number
- C++: Find Factors of a Number
- C++: Find HCF and LCM
- C++: Create a Calculator
- C++: Count Digits in a Number
- C++: First and Last Digit Sum
- C++: Product of Number Digits
- C++: Sum of Squares of Digits
- C++: Interchange Digits of Number
- C++ if-else Programs
- C++: Check Even or Odd
- C++: Check Prime or Not
- C++: Check Alphabet or Not
- C++: Check Vowel or Not
- C++: Check Leap Year or Not
- C++: Check Reverse equals Original
- C++: Check Perfect Number
- C++: Check Palindrome or Not
- C++: Check Armstrong or Not
- C++: Divisibility Test
- C++: Find Labor Wage
- C++: Find Discounted Price
- C++: Find Shipping Charge
- C++: Find Telephone Bills
- C++: Calculate Student Grade
- C++: Largest of Two Numbers
- C++: Largest of Three Numbers
- C++ Number Conversion
- C++: Decimal to Binary
- C++: Decimal to Octal
- C++: Decimal to Hexadecimal
- C++: Binary to Decimal
- C++: Binary to Octal
- C++: Binary to Hexadecimal
- C++: Octal to Decimal
- C++: Octal to Binary
- C++: Octal to Hexadecimal
- C++: Hexadecimal to Decimal
- C++: Hexadecimal to Binary
- C++: Hexadecimal to Octal
- C++ Pattern Programs
- C++: Pattern Programs
- C++: Print Diamond Pattern
- C++: Print Floyd's Triangle
- C++: Print Pascal's Triangle
- C++ Array Programs
- C++: 1D Array Program
- C++: Linear Search
- C++: Binary Search
- C++: Largest Element in an Array
- C++: Smallest Element in an Array
- C++: Find Second Largest Element
- C++: Find Second Smallest Element
- C++: Sum of All Elements
- C++: Multiply All Elements
- C++: Element in Even Position
- C++: Element in Odd Position
- C++: Print Even Numbers in Array
- C++: Print Odd Numbers in Array
- C++: Count Even or Odd Numbers
- C++: Sum of Even or Odd Numbers
- C++: Count Positive, Negative, Zero
- C++: Reverse an Array
- C++: Insert an Element
- C++: Delete an Element
- C++: Merge two Arrays
- C++: Bubble Sort
- C++: Selection Sort
- C++: Insertion Sort
- C++: Common Elements
- C++: 2D Array Programs
- C++: Add Two Matrices
- C++: Subtract Two Matrices
- C++: Transpose Matrix
- C++: Multiply Two Matrices
- C++: 3D Array Programs
- C++ String Programs
- C++: Print String
- C++: Find String Length
- C++: Compare Two Strings
- C++: Copy String
- C++: String Concatenation
- C++: Reverse a String
- C++: Delete Vowels from a String
- C++: Delete a Word from a String
- C++: Count Characters in a String
- C++: Count Words in a String
- C++: Frequency of Words
- C++: Remove Spaces from Strings
- C++: Sort a String
- C++: Uppercase to Lowercase
- C++: Lowercase to Uppercase
- C++: Swap Two Strings
- C++: Check the Anagram or Not
- C++: Capitalize All Words in a String
- C++: Get Numbers from a String
- C++ File Programs
- C++: Read a File
- C++: Write Content to a File
- C++: Append Data to a File
- C++: Read and Display File
- C++: Copy a File
- C++: Merge Two Files
- Count Characters in a File
- C++: Capitalize Every Word
- C++: List Files in Directory
- C++: Delete a File
- C++: Encrypt and Decrypt a File
- C++ Misc Programs
- C++: Print ASCII Value
- C++: Add Binary Numbers
- C++: Generate Random Numbers
- C++: Print a Smiling Face
- C++: Days into Years and Months
- C++: Add Two Numbers using Pointer
- C++: Print Fibonacci Series
- C++: Generate Armstrong Numbers
- C++: Find nCr and nPr
- C++: Get IP Address
- C++: Print Date and Time
- C++: Shutdown and Restart Computer
- C++ Programming Tutorial
- C++ Tutorial
C++ Program to Get Input from the User
In this article, you will learn and get code to get or receive input from the user in C++ programming. Here is a list of programs for gathering user input:
- Get an integer input from the user
- Get a character input from the user
- Get string input from the user
- Get string input from the user with spaces
To receive or get input from the user, use cin>>input. Here, input is the variable that stores the value of given number, character, or string.
The cin>> is used to receive the input data like integer, character, float, etc.
In C++, get an integer input from the user
This C++ program asks from user to enter an integer value or number to receive it and store in a variable say val. Then further displays the entered number on the screen:
#include<iostream> using namespace std; int main() { int val; cout<<"Enter the Number: "; cin>>val; cout<<"\nThe Value is "<<val; cout<<endl; return 0; }
This program was built and runs under the Code::Blocks IDE. Here is its sample run:
Now supply an integer input, say 25, and press the ENTER key; store it in the val variable; and print it back on the output as shown in the snapshot given below:
Get character input from the user in C++
This program accepts user input and prints the character entered by the user on the output screen at run-time.
#include<iostream> using namespace std; int main() { char ch; cout<<"Enter the Character: "; cin>>ch; cout<<"\nYou've entered: "<<ch; cout<<endl; return 0; }
Here's an example run with user input, using c as a character:
Get String Input from User in C++
This program gets string input from the user using cin. Later on, we wrote some programs that used functions to receive string input.
#include<iostream> using namespace std; int main() { char str[200]; cout<<"Enter the String: "; cin>>str; cout<<"\nYou've entered: "<<str; cout<<endl; return 0; }
Here is its sample run with user input, fresherearth as a string:
Here is another sample run with user input; this is jobails.com as a string:
As you can see from this sample run, rest of the string, after this gets skipped. That is, the string before space, only gets received here.
How to Get String Input with Spaces?
Important: To get string input along with spaces, use gets() or getline() function.
To get string input using gets(), use it in this way:
gets(str);
whereas to get string input using getline(), use it in following way:
getline(cin, str);
Get String input with Spaces using gets()
This program uses gets() to get a string and all the spaces from the user. That is, this program doesn't skip any word from the entered string, regardless of the occurrence of spaces.
#include<iostream> #include<stdio.h> using namespace std; int main() { char str[200]; cout<<"Enter the String: "; gets(str); cout<<"\nYou've entered: "<<str; cout<<endl; return 0; }
This is jobails.com's sample run with user input, this is jobails.com:
Note: The function gets() is defined in the stdio.h header file.
Using getline(), get String Input with Spaces
And here is another program that does the same job as the previous program. That is, this program also receives string input with spaces, using the getline() function:
#include<iostream> #include<string> using namespace std; int main() { string str; cout<<"Enter the String: "; getline(cin, str); cout<<"\nYou've entered: "<<str; cout<<endl; return 0; }
Here is its sample run, with user input, codes cracker dot com:
Please keep in mind that the function getline() is defined in the string header file. To declare a variable that stores or receives string input using this function, you have to use the string data type of the string header file.
The same program in different languages
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