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Java ASCII Table

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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:

Java ASCII Table


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