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C Program: Input and Display Integer, Float, and Character

Write a program to input an integer, a float, and a character from the user, and then display them back.

C Program: Input and Display Integer, Float, and Character

 
#include <stdio.h>   // Standard I/O header
 
int main() {
    int num;          // variable for integer
    float fnum;       // variable for float
    char ch;          // variable for character
 
    // Taking input from user
    printf("Enter an integer: ");
    scanf("%d", &num);   // %d is for integer
 
    printf("Enter a float: ");
    scanf("%f", &fnum);  // %f is for float
 
    printf("Enter a character: ");
    scanf(" %c", &ch);   // space before %c to avoid newline issue
 
    // Displaying entered values
    printf("\nYou entered:\n");
    printf("Integer  : %d\n", num);
    printf("Float    : %.2f\n", fnum);   // .2f limits float to 2 decimals
    printf("Character: %c\n", ch);
 
    return 0; // Successful termination
}

 
OUTPUT :

Enter an integer: 10
Enter a float: 12.345
Enter a character: A

You entered:
Integer  : 10
Float    : 12.35
Character: A

Explanation:

1. #include <stdio.h>
• Includes the Standard Input/Output header file.
• Required for printf() and scanf() functions.
2. int num; float fnum; char ch;
• Declares three variables:
• num → integer
• fnum → floating-point number
• ch → character
3. scanf("%d", &num);
• Reads an integer from user input.
• %d format specifier is used for integers.
• &num → address of the variable num.
4. scanf("%f", &fnum);
• Reads a float value.
• %f format specifier is for floats.
5. scanf(" %c", &ch);
• Reads a character.
• The leading space before %c ensures it skips leftover newline characters from previous inputs.
6. printf("Integer : %d", num);
• Displays the integer entered.
7. printf("Float : %.2f", fnum);
• Displays the float with 2 decimal places.
8. printf("Character : %c", ch);
• Displays the character entered.
9. return 0;
• Exits the program successfully.