C Format Specifier

C Format Specifier

The C format specifier is used for input and output and It is a method to tell the compiler what type of data is in a variable during taking input using scanf() or printing using printf() these are %c, %d, %f, etc and it pointed that the type of data to be printed on standard output.

For Signed Integer format specifier: %d, %i

Program

#include <stdio.h>
int main()
{
    int x = 87, y = 66;
    printf("%d\n", x);
    printf("%i\n", x);
    return 0;
}

87
87

#include <stdio.h>
int main()
{
    char ch = 'B';
    printf("%c\n", ch);
    return 0;
}

B

#include<stdio.h>
int main()
{
    printf("%u\n", -10);
    printf("%u\n", 5);
    return 0;
}

Output: 4294967286
        5

#include <stdio.h>
int main()
{
    float a = 12.67;
    printf("%f\n", a);
    printf("%e\n", a);
    return 0;
}

12.670000
1.267000e+01

#include <stdio.h>
int main()
{
    int a = 76;
    printf("%o\n", a);
    return 0;
}

114

#include <stdio.h>
int main()
{
    int a = 11;
    printf("%x\n", a);
    return 0;
}

b

#include <stdio.h>
int main()
{
    char a[] = "abcd";
    printf("%s\n", a);
    return 0;
}

abcd

#include <stdio.h>
int main()
{
    int a = 10;
    printf("The Memory Address of a: %p\n",(void*)&a);
    return 0;
}

The Memory Address of a: 0x7ffc85861624

#include <stdio.h>
int main()
{
    double a = 0.0;
    scanf("%lf", &a);//input is 45
    printf("%lf\n", a);
    return 0;
}

45.650000

#include <stdio.h>
int main()
{
    char str[20];
    scanf("%s", str);//input is abcd
    printf("%s\n", str);
    return 0;
}

abcd