7.4 Character Test

7.4 Character Test

1. [9] is_upper - Check whether a Character is an Uppercase Letter or not.

2. [10] is_lower - Check whether a Character is a Lowercase Letter or not.

3. [11] is_alpha - Check whether a Character is an Alphabet or not.

4. [12] is_digit - Check whether a Character is a Digit or not.

5. [13] is_alphanum - Check whether a Character is an Alphanumeric Character or not.

6. [14] is_vowel - Check whether a Character is a Vowel or not.

   1. 1. Use if-else.

   2. 2. Use switch case.

7. [15] is_consonant - Check whether a Character is a Consonant or not.

8. [16] is_xdigit Check if the character is a hexadecimal digit.

9. [17] is_punct Check if the character is a punctuation character.

10. [18] is_equal - Test equality of two Characters.

সমাধান

[9] is_upper - Check whether a Character is an Uppercase Letter or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if(ch >= 'A' && ch <= 'Z'){
        printf("Uppercase Letter\n");
    }
    else{
        printf("Not Uppercase Letter\n");
    }

    return 0;
}

[10] is_lower - Check whether a Character is a Lowercase Letter or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if(ch >= 'a' && ch <= 'z'){
        printf("Lowercase Letter\n");
    }
    else{
        printf("Not Lowercase Letter\n");
    }

    return 0;
}

[11] is_alpha - Check whether a Character is an Alphabet or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')){
        printf("Alphabet\n");
    }
    else{
        printf("Not Alphabet\n");
    }

    return 0;
}

[12] is_digit - Check whether a Character is a Digit or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if(ch >= '0' && ch <= '9'){
        printf("Digit\n");
    }
    else{
        printf("Not Digit\n");
    }

    return 0;
}

[13] is_alphanum - Check whether a Character is an Alphanumeric Character or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9')){
        printf("Alphanumeric Character\n");
    }
    else{
        printf("Not Alphanumeric Character\n");
    }

    return 0;
}

[14] is_vowel - Check whether a Character is a Vowel or not.

if else

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if(ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U' || ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u'){
        printf("Vowel\n");
    }
    else{
        printf("Not Vowel\n");
    }

    return 0;
}

switch case

[15] is_consonant - Check whether a Character is a Consonant or not.

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')){
        if(!(ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U' || ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u')){
            printf("Consonant \n");
        }
        else{
            printf("Not Consonant\n");
        }
    }
    else{
        printf("Not Consonant\n");
    }

    return 0;
}

[16] is_xdigit Check if the character is a hexadecimal digit. (function)

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F')){
        printf("Hexadecimal Digit\n");
    }
    else{
        printf("Not Hexadecimal Digit\n");
    }

    return 0;
}

[17] is_punct Check if the character is a punctuation character. (function)

#include<stdio.h>
int main(){
    char ch, lower_case;
    
    scanf(" %c", &ch);
    if(ch == '!' || ch == '"' || ch == '#' || ch == '$' || ch == '%' || ch == '&' || ch == '\'' || ch == '('  || ch == ')' || ch == '*' || ch == '+' || ch == '-' || ch == '.' || ch == '/'|| ch == ':' || ch == ';' || ch == '<' || ch == '=' || ch == '>' || ch == '?' || ch == '@' || ch == '[' || ch == '\\' || ch == ']' || ch == '^' || ch == '_' || ch == '`' || ch == '{' || ch == '|' || ch == '}' || ch == '~'){
        printf("Punctuation Character\n");
    }
    else{
        printf("Not Punctuation Character\n");
    }

    return 0;
}

[18] is_equal - Test equality of two Characters.

#include<stdio.h>
int main(){
    char ch1, ch2;
    
    scanf(" %c %c", &ch1, &ch2);
    if(ch1 == ch2){
        printf("Equal\n");
    }
    else{
        printf("Not Equal\n");
    }
    
    return 0;
}