MATLAB: String and display help

Question

clear all clc

fid = fopen('hangman.txt', 'r'); if fid < 0, error('Cannot open file.'); end CC = textscan(fid, '%s'); C = CC{1}; fclose(fid); index = ceil(rand * numel(C)); word = C{index};

original='Hello World'; Word = word; Word(~isspace(Word)) = '*'

first_guess=char(input('Guess a letter \n','s'));

result1 = ~isempty(findstr(word,first_guess));

selected = first_guess; stars(original == first_guess) = first_guess

OUTPUT Word =

*******

Guess a letter i

stars =

   Empty string: 1-by-0

The word is signature, but I don't unerstand how it outputs an empty string. Also, how would I get the letter to replace the asterisk after each guess? Would I end up using a while loop to keep the user guessing until the word is uncovered? This is a lot harder than I thought it would be.

Answer 1

Hello,

So long time you have waiting. Here I give you my code.

I have 'Hangman.txt'

signature
chair
calculator
window
picture
browser
phone
book
table
glass

And this is my code :

clear; clc;
fid = fopen('Hangman.txt','r');
if fid < 0,    error('Cannot open file');    end
data = textscan(fid,'%s');
data = data{1};
fclose(fid); 
index = ceil(rand * numel(data));
word = data{index};
masked = word; 
masked(~isspace(masked)) = '#';
complete = 0;
while complete == 0
    clc;
    fprintf('Word : %s\n',masked);
    letter = char(input('Guess a letter : ','s'));
    stat = findstr(word,letter);
    if ~isempty(stat)
        masked(stat) = letter;        
    end
    if isempty(findstr(masked,'#'))
        complete = 1;
    end    
end
clc; fprintf('Word : %s\n',masked);

Just try to run it.