C Programs

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Strings in C

Input and display string

C Program: Input and display string

Method 1: Using gets() function

#include <stdio.h>
 
int main() {
    char str[100];
 
    // Input string
    printf("Enter a string: ");
    gets(str); // Note: gets() is unsafe, use fgets() in practice
 
    // Display string
    printf("You entered: %s\n", str);
 
    return 0;
}

 
INPUT :
Enter a string: Welcome to ITDeveloper.in

OUTPUT :
You entered: Welcome to ITDeveloper.in

Explanation

1. A character array (str) is declared to store the string.
2. The program takes input using gets() (which reads input until a newline).
• In modern C, prefer fgets(str, sizeof(str), stdin) for safety.
3. The string is then printed using the %s format specifier.

C Program: Input and display string

Method 2: Using fgets() function

#include <stdio.h>
 
int main() {
    char str[100];
 
    printf("Enter a string: ");
    fgets(str, sizeof(str), stdin); // safer alternative to gets()
 
    printf("You entered: %s", str);
    return 0;
}

 
INPUT :
Enter a string: Welcome to ITDeveloper.in

OUTPUT :
You entered: Welcome to ITDeveloper.in

Explanation

1. A character array (str) is declared to store the string.
2. The program takes input using gets() (which reads input until a newline).
• In modern C, prefer fgets(str, sizeof(str), stdin) for safety.
3. The string is then printed using the %s format specifier.