Program to display characters slowly on the console in C++
The task is to write a C++ program that displays the characters of the given string slowly on the console.
Approach: The given problem can be solved by using the sleep() function in C++.
Header File:
- <windows.h> for windows
- <unistd.h> for Linux
Syntax:
Sleep(time_in_milliseconds)
Random Function: The rand() function in C++ generates random numbers in the range [0, RAND_MAX]. If the random numbers are generated using the rand() function without first calling srand() the program will create the same sequence of numbers each time it is executed.
Syntax:
rand(void)
Program 1:
Below is the implementation to display characters slowly on the console in C++ using the sleep function:
C++
// C++ program for the above approach #include <iostream> #include <string> #include <windows.h> using namespace std; // Driver Code int main() { // Initialize the string string S = "Hello World!" ; // Traverse the given string S for ( int i = 0; i < S[i]; i++) { cout << S[i]; // Waits for 200 milliseconds Sleep(200); } return 0; } |
Output:
Program 2:
Below is the implementation to display characters slowly on the console in C++ using the sleep function and the random function:
C++
// C++ program for the above approach #include <iostream> #include <string> #include <windows.h> using namespace std; // Driver Code int main() { string S = "Hello World!" ; for ( int i = 0; i < S.length(); i++) { cout << S[i]; // random function generates // random values Sleep(200 + rand () % 200); } return 0; } |
Output:
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