the total 128 ^5
the strings without @ at all 127^5
to get the strings that has at least @ once 128^5 - 127^5
An array of characters is an array of character codes (such as ASCII codes). A string is typically a null-terminated array of characters however some languages use the first array element to specify the string's length.
128
Because that is the definition ASCII represents Latin characters of the English alphabet (there are no English characters) the character set is called "Latin" The 95 ASCII graphic characters are numbered from 0x20 to 0x7E (32 to 126 decimal). The space character is considered a non-printing graphic Visit the link below for some in depth information.
If you're referring to kilobyte, then it contains 1024 bytes and if the characters are the standard ASCII character set where 1 character is 1 byte, then a kilobyte would have 1024 characters.
A string of characters followed by 0-9
Ansi.sys
ASCII (American Standard Code for Information Interchange) is the most common format for text files in computers and on the Internet. In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s). 128 possible characters are defined.
1000
No; ASCII itself is the character set in this case.
Different languages use different size types for different reasons. In this case, the difference is between ASCII and Unicode. Java characters use 2-bytes to store a Unicode character so as to allow a wider variety of characters in strings, whereas C, at least by default, only uses 1 byte to store a character.
If you are storing ASCII character set, 5 x 1024 x 1024 x 1024 characters can be held. If you are storing UTF-8 character set(s), 5 x 1024 x 1024 x 1024 / 8 characters can be held. English is a ASCII character set. Japanese and Nepalese can be UTF-8 character set(s).
\ is the character for 92 in ASCII.