Get first character from a String

Hi!
I've got a problem with the login of my program:
I want to get the first character out of a String to select two types of users.
eg.
login "a20202" --> a --> first kind of user or
login "b20202" --> b --> second kind of user
Can you please help me?
Bye
Liz

Am I on way to challenge the Worst Code Awards 2004 ? Let me have a go ... It is a far superior code-generating version :)
Kept to ascii-range for the benefit of your monitor (and eyes):class NoMyWayIsFarSuperior {
     public static void main(String[] args){
          System.out.println("public static char getFirstChar(String message){");
          for(int k = 0; k < 256; k++){
               System.out.println(" if(message.charAt(0) == " + k + ") return '" + ( (char) k) + "';");
          System.out.println(" throw new Exception(\"First char not within ascii range ... Please try again.\"); ");
          System.out.println("}");
} The potential for optimisation is endless! :)

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How to get a char from a String Class?

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<pre style="font-family: 'Monaco', 'Courier New', Courier, monospace; overflow:auto; color: #222; background: #DDD; padding: 0.2em; font-size: 10px; width:800px">using terms from application "Mail"
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"'Log Attributes                 0 ( 0 )     (   10 % Available )"
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Hi,
Try the code mentioned below:
DATA: STR_LEN LIKE SY-FDPOS,
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DATA: IDX      LIKE SY-FDPOS,        "mn B20K054003
        CL       LIKE SY-FDPOS.        "mn B20K054003
DATA: RSTRING(40).
DATA: STRING(40).   " value 'A,N,I,L'.
FIELD-SYMBOLS: <NLS_CHAR>.           "mn B20K054003
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STR_LEN = STRLEN( STRING ).
DESCRIBE FIELD RSTRING LENGTH RSTR_LEN.
IF RSTR_LEN < STR_LEN. RAISE TOO_SMALL. ENDIF.
WHILE IDX < STR_LEN.                 "mn B20K054003
    ASSIGN STRING+IDX(*) TO <NLS_CHAR>.   "mn B20K054003
    IF SY-LANGU EQ '2'.                "mn B20K054003
      CALL FUNCTION 'NLS_THAI_CHARLEN' "mn B20K054003
           EXPORTING                   "mn B20K054003
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           CHANGING                    "mn B20K054003
                THAI_CHARLEN = CL.     "mn B20K054003
    ELSE.                              "mn B20K054003
      CL = CHARLEN( <NLS_CHAR> ).      "mn B20K054003
    ENDIF.                             "mn B20K054003
    IF IDX NE 0.                       "mn B20K054003
      SHIFT RSTRING RIGHT BY CL PLACES."mn B20K054003
    ENDIF.                             "mn B20K054003
    RSTRING+0(CL) = STRING+IDX(CL).    "mn B20K054003
    IDX = IDX + CL.                    "mn B20K054003
ENDWHILE.                            "mn B20K054003
Regds,
Anil
Edited by: Matt on Jul 1, 2009 9:36 AM -added code tags

Getting char values from a string problem

Hi,
Here's an example of what I'm trying to do:
boolean loopSwitch = true;
while (loopSwitch)
     String orderDecider = JOptionPane.showInputDialog (null, "Would you like your numbers to be ordered in   ascending or descending order(A/D)",      "Order decision", JOptionPane.QUESTION_MESSAGE);
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Basically, I wanna parse the string into a char.
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Thanks.
Edited by: xcd on Oct 16, 2009 8:38 AM

Why not just use the String.equals() method to compare a String to a String?
But if you must, you can use the String.charAt() method to return a char at a particular location in the String.
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Formula for getting first letter of the string

Post Author: jmmj
CA Forum: Formula
Hi, I have a problem to get the first letter of the string. I need to compare first letter first and then change the rest of string to number as unit cost for calculation. For example, I have string K100, C200,... if first letter = K then 0 else if first letter = C then tonumber200..... I use CRXI, any assistance will be appreciate.jmmj

Post Author: jmmj
CA Forum: Formula
It works, thanks Kai!But when I tried to print the report, there are multiple lines shown same invoice number but different unit price. My formular is: IF {OEINPR3.COINTYPE} = 2 OR CCur({OEINPR3.LINETYPE}) = 1 //line type 1 for item, 2 for misc. charge THEN( IF {OEINPR3.COIN}[1] = "K" OR {OEINPR3.COIN}[1] = "N" THEN TONUMBER(MID({OEINPR3.COIN},2,20)) ELSE 0)ELSE 2 //for testing only The result I have: Line# Inv# unitprice total1 IN001 0.00 10.00 IN001 10.00 10.00 2 IN002 0.00 20.00 IN002 20.00 20.00.......The second line of each invoice is correct. How can I print just one line for each invoice which is correct? Thanks!jmmj

Picking character from a string

Hi guys
How to pick each character of a string containing few character without using a loop. Like "LabVIEW" will become a array of string "L","a","b" etc
Thanks in advance
Niladri

Why would you not want to use a loop?
You could use String Subset in a loop to get each byte.
You could alsoe use String to U8 array to get an array of bytes. Then convert that back to individual string characters by using the typecast function in a loop with autoindexing turned on.
Attachments:
Example_VI_BD.png ‏10 KB

Get first character from a String

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