How can i decrypt the encrypted UNICODE values of name,dob,number,date and place? here i include the code below...

clc;
clear all;
close all;

name = input('Enter name of the customer:');
dob = input('Enter dob of the customer in following formate "4-nov-1993":');
 pn = input('Enter passort number of the customer:');
 id = input('Enter issue date of the customer:');
 ip = input('Enter issue place of the customer:');
 n = length(name);
 c = [];
 for i = 1:n
     if isletter(name(i))
         pt = char(name(i));
         if pt == 'A' | pt == 'a'
             c = [c 'U+0041'];
         elseif pt == 'B'| pt == 'b'
             c = [c 'U+0042'];
         elseif pt == 'C'| pt == 'c'
              c = [c 'U+0043'];
         elseif pt == 'D'| pt == 'd'
              c = [c 'U+0044'];
         elseif pt == 'E'| pt == 'e'
              c = [c 'U+0045'];
         elseif pt == 'F'| pt == 'f'
              c = [c 'U+0046'];
         elseif pt == 'G'| pt == 'g'
              c = [c 'U+0047'];
         elseif pt == 'H'| pt == 'h'
              c = [c 'U+0048'];
         elseif pt == 'I'| pt == 'i'
              c = [c 'U+0049'];
         elseif pt == 'J'| pt == 'j'
              c = [c 'U+004A'];
         elseif pt == 'K'| pt == 'k'
              c = [c 'U+004B'];
         elseif pt == 'L'| pt == 'l'
              c = [c 'U+004C'];
         elseif pt == 'M'| pt == 'm'
              c = [c 'U+004D'];
         elseif pt == 'N'| pt == 'n'
              c = [c 'U+004E'];
         elseif pt == 'O'| pt == 'o'
              c = [c 'U+004F'];
         elseif pt == 'P'| pt == 'p'
              c = [c 'U+0050'];
         elseif pt == 'Q'| pt == 'q'
              c = [c 'U+0051'];
         elseif pt == 'R'| pt == 'r'
              c = [c 'U+0052'];
         elseif pt == 'S'| pt == 's'
              c = [c 'U+0053'];
         elseif pt == 'T'| pt == 't'
              c = [c 'U+0054'];
         elseif pt == 'U'| pt == 'u'
              c = [c 'U+0055'];
         elseif pt == 'V'| pt == 'v'
              c = [c 'U+0056'];
         elseif pt == 'W'| pt == 'w'
              c = [c 'U+0057'];
         elseif pt == 'X'| pt == 'x'
              c = [c 'U+0058'];
         elseif pt == 'Y'| pt == 'y'
              c = [c 'U+0059'];
         elseif pt == 'Z'| pt == 'z'
              c = [c 'U+005A'];
              break;
         end
     end 
 end

dobn = datenum(dob);
dob1 = num2str(dobn);
n1 = length(dob1);
c1 = [];
for i = 1:n1
    pt1 = dob1(i);   
    if pt1 == 0
             c1 = [c1 'U+0030'];
         elseif pt1 == '1'
             c1 = [c1 'U+0031'];
         elseif pt1 == '2'
             c1 = [c1 'U+0032'];
         elseif pt1 == '3'
             c1 = [c1 'U+0033'];
         elseif pt1 == '4'
             c1 = [c1 'U+0034'];
         elseif pt1 == '5'
             c1 = [c1 'U+0035'];
         elseif pt1 == '6'
             c1 = [c1 'U+0036'];
         elseif pt1 == '7'
             c1 = [c1 'U+0037'];
         elseif pt1 == '8'
             c1 = [c1 'U+0038'];
         elseif pt1 == '9'
             c1 = [c1 'U+0039'];
         end
    end

      pn1 = num2str(pn);
  n2 = length(pn1);
   c2 = [];
   for i = 1:n2
       pt2 = pn1(i);
       if pt2 == '0'
               c2 = [c2 'U+0030'];
           elseif pt2 == '1'
               c2 = [c2 'U+0031'];
           elseif pt2 == '2'
               c2 = [c2 'U+0032'];
           elseif pt2 == '3'
               c2 = [c2 'U+0033'];
           elseif pt2 == '4'
               c2 = [c2 'U+0034'];
           elseif pt2 == '5'
               c2 = [c2 'U+0035'];
           elseif pt2 == '6'
               c2 = [c2 'U+0036'];
           elseif pt2 == '7'
               c2 = [c2 'U+0037'];
           elseif pt2 == '8'
               c2 = [c2 'U+0038'];
           elseif pt2 == '9'
               c2 = [c2 'U+0039'];
           end
   end

   idn = datenum(id);
  id1 = num2str(idn);
  n3 = length(id1);
  c3 = [];
  for i = 1:n3
      pt3 = id1(i);   
      if pt3 == '0'
               c3 = [c3 'U+0030'];
           elseif pt3 == '1'
               c3 = [c3 'U+0031'];
           elseif pt3 == '2'
               c3 = [c3 'U+0032'];
           elseif pt3 == '3'
               c3 = [c3 'U+0033'];
           elseif pt3 == '4'
               c3 = [c3 'U+0034'];
           elseif pt3 == '5'
               c3 = [c3 'U+0035'];
           elseif pt3 == '6'
               c3 = [c3 'U+0036'];
           elseif pt3 == '7'
               c3 = [c3 'U+0037'];
           elseif pt3 == '8'
               c3 = [c3 'U+0038'];
           elseif pt3 == '9'
               c3 = [c3 'U+0039'];

           end
  end

   n4 = length(ip);
   c4 = [];

for i = 1:n4
    if isletter(ip(i))
        pt4 = char(ip(i));
        if pt4 == 'A' | pt4 == 'a'
            c4 = [c4 'U+0041'];
        elseif pt4 == 'B'| pt4 == 'b'
            c4 = [c4 'U+0042'];
        elseif pt4 == 'C'| pt4 == 'c'
            c4 = [c4 'U+0043'];
        elseif pt4 == 'D'| pt4 == 'd'
            c4 = [c4 'U+0044'];
        elseif pt4 == 'E'| pt4 == 'e'
            c4 = [c4 'U+0045'];
        elseif pt4 == 'F'|| pt4 == 'f'
            c4 = [c4 'U+0046'];
        elseif pt4 == 'G'| pt4 == 'g'
            c4 = [c4 'U+0047'];
        elseif pt4 == 'H'| pt4 == 'h'
            c4 = [c4 'U+0048'];
        elseif pt4 == 'I'| pt4 == 'i'
            c4 = [c4 'U+0049'];
        elseif pt4 == 'J'| pt4 == 'j'
            c4 = [c4 'U+004A'];
        elseif pt4 == 'K'| pt4 == 'k'
            c4 = [c4 'U+004B'];
        elseif pt4 == 'L'| pt4 == 'l'
            c4 = [c4 'U+004C'];
        elseif pt4 == 'M'| pt4 == 'm'
            c4 = [c4 'U+004D'];
        elseif pt4 == 'N'| pt4 == 'n'
            c4 = [c4 'U+004E'];
        elseif pt4 == 'O'| pt4 == 'o'
            c4 = [c4 'U+004F'];
        elseif pt4 == 'P'| pt4 == 'p'
            c4 = [c4 'U+0050'];
        elseif pt4 == 'Q'| pt4 == 'q'
            c4 = [c4 'U+0051'];
        elseif pt4 == 'R'| pt4 == 'r'
            c4 = [c4 'U+0052'];
        elseif pt4 == 'S'| pt4 == 's'
            c4 = [c4 'U+0053'];
        elseif pt4 == 'T'| pt4 == 't'
            c4 = [c4 'U+0054'];
        elseif pt4 == 'U'| pt4 == 'u'
            c4 = [c4 'U+0055'];
        elseif pt4 == 'V'| pt4 == 'v'
            c4 = [c4 'U+0056'];
        elseif pt4 == 'W'| pt4 == 'w'
            c4 = [c4 'U+0057'];
        elseif pt4 == 'X'| pt4 == 'x'
            c4 = [c4 'U+0058'];
        elseif pt4 == 'Y'| pt4 == 'y'
            c4 = [c4 'U+0059'];
        elseif pt4 == 'Z'| pt4 == 'z'
            c4 = [c4 'U+005A'];
        end
    end 
end

Answer 1

[Stephen23]

Just use sprintf and sscanf:

>> str = input('Enter the name of the customer: ','s');
Enter the name of the customer: sarah
>> ucd = sprintf('U+%04X',upper(str))
ucd =
U+0053U+0041U+0052U+0041U+0048
>> out = char(sscanf(ucd,'U+%X')).'
out =
SARAH

Your code is very inefficient as you expand the output character array on every loop iteration (read about array preallocation to know why this is a bad idea).

Repeated lines of code make the algorithm be hard to read, hard to check, and hard to maintain. Because it requires making lots of changes by hand it is liable to be buggy, and can then be very difficult to change all instances of that (copied and changed) line.

Using sprintf and sscanf will be much more efficient, and are easier to read and will be less buggy.