How can i run my integer number from this question ?

The question is :

Enter a character. If it is an uppercase letter, it outputs its

successor. If it is a lowercase letter, it outputs its leading character.

If it is another character, it will be output as it is.

Point to be noted , i want to execute the integer number with matlab function such as int8 , int16 like this . I'm going to share my code which i made. Can anyone help me to find the problem ?

Thanks in advance

My created code is :

inputLetter = input('Please input  a string number : ','s');
if(inputLetter == upper(inputLetter))
   fprintf( 'Its a successor!');
     elseif (inputLetter == lower(inputLetter))
            fprintf( 'Its a leading charecter!');
elseif(inputLetter == int16(inputLetter))
                 fprintf('Its is obvoiusly '+inputLetter);
else
    fprintf('Incorrect input ! ');
    
end

[Stephen23]

>> inp = 'Xx!';
>> out = char(inp-(lower(inp)==inp)+(upper(inp)==inp))
out = Yw!

[MD HASIBUR RAHMAN LEMON]

@Stephen Cobeldick Where i need to write this line ?

Can you please write full code step by step ? Thanks for your attention.

[Walter Roberson]

There is no point in int8 or int16 in that code. You only have three cases: uppercase, lowercase, and anything else. Once you have tested for uppercase and lowercase, then you know you must have something else.

[MD HASIBUR RAHMAN LEMON]

@Walter Roberson Then Why i didn't get anything else. If i input 1 then my output come 'It's a Successor!'. But i want 1 as a output . What i make mistake ? Thanks for your attention sir.

[Walter Roberson]

What is the expected value of upper('1') ?

[MD HASIBUR RAHMAN LEMON]

If i didn't input string element then my output will be come as it is . So do you mean my input has problem ? I don't want to take 1 as a string . You can see my question :

" Enter a character.

If it is an uppercase letter, it outputs its successor.

If it is a lowercase letter, it outputs its leading character.

If it is another character, it will be output as it is."

According to this question what i make mistake sir ?

[Walter Roberson]

You tested whether the input is an uppercase character by testing

if inputLetter == upper(inputLetter)

But when you take upper() of something that is not a letter, then the result is the same as the input -- upper('1') is the same as '1' .

I recommend you see isstrprop() if you want to get as far as supporting uppercase and lowercase Unicode characters.

If you only want to bother handling English, then I suggest you use ismember()

Answer 1

[Asad (Mehrzad) Khoddam]

You can convert the strinng to a double number then apply int8 or int16:

int16(str2double(inputLetter))