C language if condition with characters examples | set 1

Set 1:Q1-Q5      Set 2:Q6-Q10      Set 3:Q11-Q15

Question:1

Write a C program to take input for a character, check and print whether the character is an alphabet or not?

Sol:

#include <stdio.h>
 int main()
 {
     char ch;
     printf("Enter any character ");
     scanf("%c",&ch);
     if((ch>='A' && ch<='Z') || (ch>='a' && ch<='z'))
         printf("it is an alphabet");
     else
         printf("it is not an alphabet");
 return 0;
 }

Output:

Enter any character h
it is an alphabet

Enter any character d
it is an alphabet

Enter any character 5
it is not an alphabet

Question:2

Write a C program to take input for a character , check and print whether the character is an upper case alphabet or not?

Sol:

#include <stdio.h>
 int main()
 {
     char ch;
     printf("Enter any character ");
     scanf("%c",&ch);
     if(ch>='A' && ch<='Z')
         printf("it is an upper case alphabet");
     else
         printf("it is not an upper case alphabet");
 return 0;
 }

Output:

Enter any character D
it is an upper case alphabet

Enter any character e
it is not an upper case alphabet

Question:3

Write a C program to take input for a character , check and print whether the character is a lower case alphabet or not?

Sol:

#include <stdio.h>
 int main()
 {
     char ch;
     printf("Enter any character ");
     scanf("%c",&ch);
     if(ch>='a' && ch<='z')
         printf("it is a lower case alphabet");
     else
         printf("it is not a lower case alphabet");
 return 0;
 }

Output:

Enter any character d
it is a lower case alphabet

Enter any character D
it is not a lower case alphabet

Question:4

Write a C program to take input for a character , check and print whether the character is a digit or not?

Sol:

#include <stdio.h>
 int main()
 {
     char ch;
     printf("Enter any character ");
     scanf("%c",&ch);
     if(ch>='0' && ch<='9')
         printf("it is a digit");
     else
         printf("it is not a digit");
 return 0;
 }

Output:

Enter any character 5
it is a digit

Enter any character y
it is not a digit

Question:5

Write a C program to take input for a character check and print whether the character is a vowel or not?

Sol:

#include <stdio.h>

int main()
{
    char ch;
    printf("Enter any character ");
    scanf("%c",&ch);
    if(ch=='A' || ch=='a' || ch=='E' || ch=='e' || ch=='I' || ch=='i' || ch=='O' || ch=='o' || ch=='U' || ch=='u' )
        printf("it is a vowel");
    else
        printf("it is not a vowel");

    return 0;
}

Output:

Enter any character k
it is not a vowel

Enter any character e
it is a vowel

Set 1:Q1-Q5      Set 2:Q6-Q10      Set 3:Q11-Q15

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