In this simple tutorial, we will learn to get input from the user in C++. We will learn to take integer, character, string with spaces as an input. If you want to learn about the data types in C++ then go through the following tutorial.
Take Integer and Character as an Input from User
The program is simple, to take an input we use cin input stream present in C++. The program asks the user to enter an integer and displays that value on the screen. Then it also asks the user to enter a character and the value is again printed on the screen.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #include <iostream> using namespace std; int main() { // integer int val; cout << "Enter the Number: "; cin >> val; cout << "Integer Value " << val; // Character char ch; cout << "\n\nEnter a Character: "; cin >> ch; cout << "Character value: " << ch; return 0; } |
Output:
Enter the Number: 25
Integer Value 25
Enter a Character: A
Character value: A
Get String Input with Spaces
We can get a string with spaces from the user with the use of gets() function or getline()
1 2 3 | gets(str); getline(cin, str); |
1. Take String input with Spaces using gets()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #include <iostream> #include <stdio.h> using namespace std; int main() { char str[200]; cout << "Enter the String: "; gets(str); cout << "String entered: " << str; return 0; } |
Enter the String: This is simple2code.com
String entered: This is simple2code.com
2. Take String Input with Spaces using getline()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #include <iostream> #include <string> using namespace std; int main() { string str; cout << "Enter the String: "; getline(cin, str); cout << "String entered: " << str; return 0; } |
Enter the String: I am simple2code.com
String entered: I am simple2code.com