Java ASCII Table
ASCII stands for American Standard Code for Information Interchange. ASCII is a standard data-transmission code that is used by the computer for representing both the textual data and control characters.
ASCII is a 7-bit character set having 128 characters, i.e., from 0 to 127. ASCII represents a numeric value for each character, such as 65 is a value of A. In our Java program, we need to manipulate characters that are stored in ASCII.
In Java, an ASCII table is a table that defines ASCII values for each character. It is also a small subset of Unicode because it contains 2 bytes while ASCII requires only one byte.
ASCII Value |
Decimal Value |
Hex value |
Control |
0 |
0 |
Control |
1 |
1 |
Control |
2 |
2 |
Control |
3 |
3 |
Control |
4 |
4 |
Control |
5 |
5 |
Control |
6 |
6 |
Control |
7 |
7 |
Control |
8 |
8 |
\t |
9 |
9 |
\n |
10 |
A |
Whitespace |
11 |
B |
\f |
12 |
C |
\r |
13 |
D |
Control |
14 |
E |
Control |
14 |
F |
Control |
16 |
10 |
Control |
17 |
11 |
Control |
18 |
12 |
Control |
19 |
13 |
Control |
20 |
14 |
Control |
21 |
15 |
Control |
22 |
16 |
Control |
23 |
17 |
Control |
24 |
18 |
Control |
25 |
19 |
Control |
26 |
1a |
Control |
27 |
1b |
Whitespace |
28 |
1c |
Whitespace |
29 |
1d |
Whitespace |
30 |
1e |
Whitespace |
31 |
1f |
space |
32 |
20 |
! |
33 |
21 |
" |
34 |
22 |
# |
35 |
23 |
$ |
36 |
24 |
% |
37 |
25 |
& |
38 |
26 |
' |
39 |
27 |
( |
40 |
28 |
) |
41 |
29 |
* |
42 |
2a |
+ |
43 |
2b |
, |
44 |
2c |
- |
45 |
2d |
. |
46 |
2e |
/ |
47 |
2f |
0 |
48 |
30 |
1 |
49 |
31 |
2 |
50 |
32 |
3 |
51 |
33 |
4 |
52 |
34 |
5 |
53 |
35 |
6 |
54 |
36 |
7 |
55 |
37 |
8 |
56 |
38 |
9 |
57 |
39 |
: |
58 |
3a |
; |
59 |
3b |
< |
60 |
3c |
= |
61 |
3d |
> |
62 |
3e |
? |
63 |
3f |
@ |
64 |
40 |
A |
65 |
41 |
B |
66 |
42 |
C |
67 |
43 |
D |
68 |
44 |
E |
69 |
45 |
F |
70 |
46 |
G |
71 |
47 |
H |
72 |
48 |
I |
73 |
49 |
J |
74 |
4a |
K |
75 |
4b |
L |
76 |
4c |
M |
77 |
4d |
N |
78 |
4e |
O |
79 |
4f |
P |
80 |
50 |
Q |
81 |
51 |
R |
82 |
52 |
S |
83 |
53 |
T |
84 |
54 |
U |
85 |
55 |
V |
86 |
56 |
W |
87 |
57 |
X |
88 |
58 |
Y |
89 |
59 |
Z |
90 |
5a |
[ |
91 |
5b |
\ |
92 |
5c |
] |
93 |
5d |
^ |
94 |
5e |
_ |
95 |
5f |
` |
96 |
60 |
a |
97 |
61 |
b |
98 |
62 |
c |
99 |
63 |
d |
100 |
64 |
e |
101 |
65 |
f |
102 |
66 |
g |
103 |
67 |
h |
104 |
68 |
i |
105 |
69 |
j |
106 |
6a |
k |
107 |
6b |
l |
108 |
6c |
m |
109 |
6d |
n |
110 |
6e |
o |
111 |
6f |
p |
112 |
70 |
q |
113 |
71 |
r |
114 |
72 |
s |
115 |
73 |
t |
116 |
74 |
u |
117 |
75 |
v |
118 |
76 |
w |
119 |
77 |
x |
120 |
78 |
y |
121 |
79 |
z |
122 |
7a |
{ |
123 |
7b |
| |
124 |
7c |
} |
125 |
7d |
~ |
126 |
7e |
control |
127 |
7f |
Let's create a Java program for constructing the above ASCII table. In the Java program, we use the isWhitespace() method of the character for determining whether a character is a whitespace or not. We also use the built-in method IsISOControl() method for detecting characters that are not letters, digits and punctuation.
ASCIITable.java
Output:
|