inputdlg Window Not Showing

So I was creating an even or odd checker using inputdlg. However, when I ran it, the inputdlg window actually does not show up. Here is the code/proof that I used so far.

prompt={"Enter a 1 x 1 integer value:"}
dlgtitle="Even or odd test"
tmp=inputdlg(prompt,dlgtitle)
user_number=round(str2double(tmp))
if not(isnan(user_number))
    fprintf("Number is valid.\n")
    if rem(user_number,2)==0
        fprintf("Your number is even.\n")
    else
        fprintf("Your number is odd.\n")
    end
else
    fprintf("Number is not valid.\n")
end

There aren't any errors or warnings shown on there. Can someone tell me if there is a way to get the inputdlg window to show (if it has something to do with the code)?

Answer 1

[Manikanta Aditya]

Hi @Jaiden,

Your code for checking even or odd numbers using 'inputdlg' looks mostly correct, but if the 'inputdlg' window isn't showing up, it might be due to a few reasons, such as issues with MATLAB's graphical interface or script execution.

1. Ensure that MATLAB’s graphical user interface components are not disabled or malfunctioning,
2. Add semicolons to the script.
3. And check tf the script if its calling the inputdlg.m

Try this, I checked in my MATLAB R2024a, and it works:

prompt = {"Enter a 1 x 1 integer value:"};
dlgtitle = "Even or odd test";
tmp = inputdlg(prompt, dlgtitle);

if ~isempty(tmp) % Check if inputdlg returned a value
    user_number = round(str2double(tmp{1}));
    if ~isnan(user_number)
        fprintf("Number is valid.\n");
        if rem(user_number, 2) == 0
            fprintf("Your number is even.\n");
        else
            fprintf("Your number is odd.\n");
        end
    else
        fprintf("Number is not valid.\n");
    end
else
    fprintf("No input provided.\n");
end

Hope this helps.

Answer 2

[Image Analyst]

I ran it and it works fine for me. The input window popped up.

Your script in not called inputdlg.m is it? Because that would be a problem.

[Manikanta Aditya]

+1