Convert character to ASCII numeric value in java
Very simple. Just cast your char
as an int
.
char character = 'a';
int ascii = (int) character;
In your case, you need to get the specific Character from the String first and then cast it.
char character = name.charAt(0); // This gives the character 'a'
int ascii = (int) character; // ascii is now 97.
Though cast is not required explicitly, but its improves readability.
int ascii = character; // Even this will do the trick.
How to get the ASCII value of a character
From here:
The function
ord()
gets the int value
of the char. And in case you want to
convert back after playing with the
number, functionchr()
does the trick.
>>> ord('a')
97
>>> chr(97)
'a'
>>> chr(ord('a') + 3)
'd'
>>>
In Python 2, there was also the unichr
function, returning the Unicode character whose ordinal is the unichr
argument:
>>> unichr(97)
u'a'
>>> unichr(1234)
u'\u04d2'
In Python 3 you can use chr
instead of unichr
.
ord() - Python 3.6.5rc1 documentation
ord() - Python 2.7.14 documentation
Convert character to ASCII code in JavaScript
"\n".charCodeAt(0);
How to convert characters into ASCII code?
I guess you mean utf8ToInt
, see the R manuals:
utf8ToInt("Hello")
# [1] 72 101 108 108 111
Or, if you want a mapping of the letters to their codes:
sapply(strsplit("Hello", NULL)[[1L]], utf8ToInt)
# H e l l o
# 72 101 108 108 111
Converting char to ASCII and display in C#?
Try
int AsciCode = (int)'c';
string AsciStr = AsciCode.ToString();
hope it helps
Convert a word's characters into its ascii code list concisely in Raku
There are a couple of things we can do here to make it work.
First, let's tackle the @ascii
variable. The @
sigil indicates a positional variable, but you assigned a single string to it. This creates a 1-element array ['abc...']
, which will cause problems down the road. Depending on how general you need this to be, I'd recommend either creating the array directly:
my @ascii = <a b c d e f g h i j k l m n o p q r s t u v x y z>;
my @ascii = 'a' .. 'z';
my @ascii = 'abcdefghijklmnopqrstuvwxyz'.comb;
or going ahead and handling the any
part:
my $ascii-char = any <a b c d e f g h i j k l m n o p q r s t u v x y z>;
my $ascii-char = any 'a' .. 'z';
my $ascii-char = 'abcdefghijklmnopqrstuvwxyz'.comb.any;
Here I've used the $
sigil, because any
really specifies any single value, and so will function as such (which also makes our life easier). I'd personally use $ascii
, but I'm using a separate name to make later examples more distinguishable.
Now we can handle the map function. Based on the above two versions of ascii
, we can rewrite your map function to either of the following
{ push @tmp, $_.ord if $_ eq @ascii.any }
{ push @tmp, $_.ord if $_ eq $ascii-char }
Note that if you prefer to use ==
, you can go ahead and create the numeric values in the initial ascii
creation, and then use $_.ord
. As well, personally, I like to name the mapped variable, e.g.:
{ push @tmp, $^char.ord if $^char eq @ascii.any }
{ push @tmp, $^char.ord if $^char eq $ascii-char }
where $^foo
replaces $_
(if you use more than one, they map alphabetical order to @_[0]
, @_[1]
, etc).
But let's get to the more interesting question here. How can we do all of this without needing to predeclare @tmp
? Obviously, that just requires creating the array in the map loop. You might think that might be tricky for when we don't have an ASCII value, but the fact that an if
statement returns Empty
(or ()
) if it's not run makes life really easy:
my @tmp = map { $^char.ord if $^char eq $ascii-char }, "wall".comb;
my @tmp = map { $^char.ord if $^char eq @ascii.any }, "wall".comb;
If we used "wáll", the list collected by map
would be 119, Empty, 108, 108
, which is automagically returned as 119, 108, 108
. Consequently, @tmp
is set to just 119, 108, 108
.
Convert Char to ASCII Code (Decimal) in Assembly
Okay, I solved this one. Here's the final Code. Please remember i'm just a beginner - so don't tear me a new one if this code is bad. It works though!
; **************** MACROS *********************
; START PROGRAM
START MACRO
MOV AX, DATA ; Data Segment to AX Register
MOV DS, AX ; HAVE DS Point to Data Segment
ENDM
; END PROGRAM
END MACRO
MOV AH, 4CH ; END Program
INT 21H ; Call DOS Service
ENDM
; PRINT STRING TO OUTPUT
PSTRING MACRO STR
MOV AH,09H
LEA DX,STR
INT 21H
ENDM
; Creates a New Line
NEWLINE MACRO
MOV DX, 0AH ; Input of string to DX
MOV AH, 02H ; Write Char to standard output
INT 21H
MOV DL, 0DH ;
MOV AH, 02H ; Carriage Return
INT 21H ;
ENDM
; Get CHAR Input
GETINPUT MACRO INPUT
MOV AH, 01H ; Receive input
INT 21H ; Call DOS Service
MOV INPUT, AL ; Store into Input Variable
ENDM
; ********** END MACROS *******************
.MODEL
.STACK 100H
.DATA
MSG1 db 'Choose A Char to Convert To ASCII: $'
CHAR db ? ; Store Input Char
REM db ? ; Remainder 8-bit storate
QUOT db ? ; Quotient 8-bit storage
COUNT db 0 ; Counts the stacks
.CODE
MAIN PROC
START
PSTRING MSG1
GETINPUT CHAR
NEWLINE
MOV AX, 0 ; Clear AX Register
MOV AL, CHAR ; Move input to AL
MOV DX, 0 ; Clear DX Register
; ********************** ;
; QUOTIENT STORED IN AL ;
; REMAINDER STORED IN AH ;
; ********************** ;
myLoop:
MOV DL, 10 ; Set Divisor to 10
DIV DL ; Divide AX by 10
MOV REM, AH ; Move Remainder into REM Variable
MOV QUOT, AL ; Move Quotient into QUOT Variable
MOV AX, 0 ; Clear AX
MOV AL, REM ; Move REM to AL
PUSH AX ; Push AX to Stack
INC COUNT ; Increase Count by 1
MOV AL, QUOT ; Place Quotient Into AL
MOV AH, 0 ; AH was altered, Zero it out
CMP AL, 0 ; If No Quotient Remains we can exit
JNZ myLoop ; Jump if NOT zero
myLoop2:
POP DX ; Pop from the stack into DX
ADD DX, '0' ; To Ascii Char
MOV AH, 02H ; Print Char Command
INT 21H ; Call to DOS System
DEC COUNT ; Decrement COUNT
CMP COUNT, 0 ; Compare COUNT to 0
JNZ myLoop2
END
MAIN ENDP
END MAIN
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