Numeral Systems UTF-8

UTF 8 = Unicode Transformation Format – 8-bit

UTF8 is a character encoding where is assigns 1,112,064 characters a binary number that is from 1 byte (8 bits) to 4 bytes (32 bits) long.

Why is it necessary? Well, our computers use binary to store data. So inside a computer information is a sequence of 0’s and 1’s. When you are writing a text file on your computer the computer needs to store that in binary code (in 0’s and 1’s). But what would the character 'a' represent in binary? Short answer is whatever you want it to be. That is why we have UTF8 (and ASCII before it), it provides a standard that says the letter 'a' will take the value of 01100010 in binary. It allows us to say this file is stored with the UTF8 encoding, so the binary code must be interpreted with that in mind. 4.Numeral systems - UTF-8

 package main

import "fmt"

func main() {
    for i := 60; i < 122; i++ {
        fmt.Printf("%d \t %b \t %x \t %q \n", i, i, i, i)
    }
}

RUN{: .btn .btn-blue } output:

60      111100      3c      '<' 
61      111101      3d      '=' 
62      111110      3e      '>' 
63      111111      3f      '?' 
64      1000000      40      '@' 
65      1000001      41      'A' 
66      1000010      42      'B' 
67      1000011      43      'C' 
68      1000100      44      'D' 
69      1000101      45      'E' 
70      1000110      46      'F' 
71      1000111      47      'G' 
72      1001000      48      'H' 
73      1001001      49      'I' 
74      1001010      4a      'J' 
75      1001011      4b      'K' 
76      1001100      4c      'L' 
77      1001101      4d      'M' 
78      1001110      4e      'N' 
79      1001111      4f      'O' 
80      1010000      50      'P' 
81      1010001      51      'Q' 
82      1010010      52      'R' 
83      1010011      53      'S' 
84      1010100      54      'T' 
85      1010101      55      'U' 
86      1010110      56      'V' 
87      1010111      57      'W' 
88      1011000      58      'X' 
89      1011001      59      'Y' 
90      1011010      5a      'Z' 
91      1011011      5b      '[' 
92      1011100      5c      '\\' 
93      1011101      5d      ']' 
94      1011110      5e      '^' 
95      1011111      5f      '_' 
96      1100000      60      '`' 
97      1100001      61      'a' 
98      1100010      62      'b' 
99        1100011      63      'c' 
100      1100100      64      'd' 
101      1100101      65      'e' 
102      1100110      66      'f' 
103      1100111      67      'g' 
104      1101000      68      'h' 
105      1101001      69      'i' 
106      1101010      6a      'j' 
107      1101011      6b      'k' 
108      1101100      6c      'l' 
109      1101101      6d      'm' 
110      1101110      6e      'n' 
111      1101111      6f      'o' 
112      1110000      70      'p' 
113      1110001      71      'q' 
114      1110010      72      'r' 
115      1110011      73      's' 
116      1110100      74      't' 
117      1110101      75      'u' 
118      1110110      76      'v' 
119      1110111      77      'w' 
120      1111000      78      'x' 
121      1111001      79      'y'

as we seen decimal,binary and hexadecimal programs in Go , in this above UTF-8 program annotaition %q is used for UTF-8 character in coding. Note:-UTF-8 has been the dominant character encoding for the World Wide Web since 2009, and as of March 2018 accounts for 91.0% of all Web pages. The Internet Mail Consortium(IMC) recommended that all e-mail programs be able to display and create mail using UTF-8, and the W3C recommends UTF-8 as the default encoding in XML and HTML