Use string as identifier in array?

hi, is it possible to use String as identifier in arrays instead of numbers? if so, how do you do it?

lol.. mmm.. well, i just discovered hashtables :D mmm.. i find hashname.put(object, object); to be too much.. so i wrote a adhoc method for walking through two arrays and putting them into hastables :D though, i had some errors:
public Hashtable makeHash(int cap, String allString[], int allInt[])
     Hashtable hash = new Hashtable(cap);
     int i = 0;
     while(i < allString.length && i < allInt.length)
          hash.put(allString, new Integer(allInt[i]));
          i++;
     return hash;
then i ran this method:
String days[]=
          "Sun",
          "Mon",
          "Tue",
          "Wed",
          "Thu",
          "Fri",
          "Sat"
int offset[] = {0, 1, 2, 3, 4, 5, 6};
makeHash(7, days[], offset[]);in eclipse, there is a red mark under the comma right after days[] in the makeHash parameter... when i mouse over it, it gave me an "Syntax error on token ",","." expected".. anyone know what i'm doing wrong?

Similar Messages

How can I use a variable as an array's name?

Ok I have several arrays in my code (lets call them "array1", "array2" etc) and I want to load them based on the users input. So if the user enters array1, I want the first array to be loaded, and the same with the other arrays.
I tried saving the user's input on a string variable called ARRAY_NAME, so that each time the user enters a different array name, the corresponding array is loaded. Something like this:
ARRAY_NAME[c1][c2]; but I get this error:
array required, but java.lang.String found
ARRAY_NAME[c1][c2];
___________^
Can you please tell me what is the correct way of doing it?
Thanx!

The short answer is you can't. An object name can't be
variable and must be known at compile time. But you
could associate the user input name with a particular
array, for example, using a HashMap with the user name
as the key to an array. However, you'd need to use a
container class (Vector, ArrayList, etc.) rather than
a raw array, because containers only take class
instances as elements.Maps can't deal with primitives, that is true. However, arrays are full scale objects, so they can be put into maps.
Also, my code had a bug in it. Try this:
int userIndex = getUserIndex();
String userInput = getUserInput();
Field array = getClass().getDeclaredField(userInput);
Object item = Array.get(array.get(this), userIndex);

How to put a String into a byte array

How can i put a String into a byte array byte[]. So that i can send it to the serial port for output to an LCD display. Cheers David

javadocs for String
getBytes
public byte[] getBytes()
Encodes this String into a sequence of bytes using the platform's default charset, storing the result into a new byte array.
Returns:
The resultant byte arraySince:
JDK1.1

Using a ariable for an array name

I am currently working on the search method for my project.Which is to use breadth first search, to find the goal state of a problem.I am storing each new state encountered in a queue called states, and using an array for each state. So states would be a queue of arrays.
I was hoping to name each new state in order so state1 state2 state3 and so on. So for instance state1 would be an array containing the original board.
The problem I am having is declaring a new array for each new state. I was hoping to use a variable i to keep count of the number of states, so that when I declare a new array I could use something like
String[][] statei = original board array
So if i = 1 then state1 would contain a copy of the original array.
However I cannot seem to get java to recognise that i is a variable and not part of the name for the array.
Is there any way to let java know that I�m using i to represent a variable. Do I need to but i in quotation marks or something similar?
Thanks for any help

sorry i wasnt clear enough, what i have is an initial array called boards. Now every time i move a value in boards i need to create a new array. So for instance
i = no of states
new String [][] statei = a copy of boards[] with the affects of making the move
example if i was moving the value of boards[x][y] to boards[x][y+1]
i would need statei to be an array containg the change to the array above

Problem in using String in Implicit Cursor

Hi,
I am facing problem in using String in Implicit Cursor:
I have initialise
DECLARE
v_grant varchar2(4000);
begin
v_grant:='SELECT TABLE_NAME FROM DUMP_USER_TABLES WHERE TABLE_NAME LIKE ';
FOR obj IN (SELECT v_grant||'''BS%''' FROM dual) LOOP
V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
DBMS_OUTPUT.PUT_LINE('THE REVOKE STATEMENT IS'||V_REVOKE);
num := num + 1;
END LOOP;
END;
I am not getting the value from obj.TABLE_NAME its coming as 'obj.TABLE_NAME'
Kindly anyhelp will be needful for me

Besides from what Sybrand already pointed out clearly:
Your example doesn't run at all:
MHO%xe> DECLARE
2 v_grant varchar2(4000);
3 begin
4 v_grant:='SELECT TABLE_NAME FROM DUMP_USER_TABLES WHERE TABLE_NAME LIKE ';
5 FOR obj IN (SELECT v_grant||'''BS%''' FROM dual) LOOP
6 V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
7 DBMS_OUTPUT.PUT_LINE('THE REVOKE STATEMENT IS'||V_REVOKE);
8 num := num + 1;
9 END LOOP;
10 END;
11 /
V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
FOUT in regel 6:
.ORA-06550: line 6, column 1:
PLS-00201: identifier 'V_REVOKE' must be declared
ORA-06550: line 6, column 1:
PL/SQL: Statement ignored
ORA-06550: line 7, column 49:
PLS-00201: identifier 'V_REVOKE' must be declared
ORA-06550: line 7, column 1:
PL/SQL: Statement ignored
ORA-06550: line 8, column 1:
PLS-00201: identifier 'NUM' must be declared
ORA-06550: line 8, column 1:
PL/SQL: Statement ignoredI guess you need to read up on quoting strings properly and probably also dynamic SQL.
But:
WHAT are you trying to do anyway?
I cannot parse your code at all...so what is your requirement in human language?

Using PHP to identify the current page - by David Powers

Hi There,
I'm trying to write a script so I can identify the sub-pages under "Gallery" in my website
Under Gallery I have more than hundred pages describing the photos but I want to identify them as the "Gallery" page.
How do I achieve that?
It would be tedious to write the "PHP if" statement for each photo link.
I trust there is a simpler solution.
In PHP solutions by David Powers, Ch.4 "Using PHP to identify the current page"
The script is:
<?php $currentPage = basename($_SERVER['SCRIPT_NAME']); ?>
<ul id="nav">
<li><a href="index.php" <?php if ($currentPage == 'index02.php') {echo 'id="here"';} ?>>Home</a></li>
<li><a href="journal.php" <?php if ($currentPage == 'journal.php') {echo 'id="here"';} ?>>Journal</a></li>
<li><a href="gallery.php" <?php if ($currentPage == 'gallery.php') {echo 'id="here"';} ?>>Gallery</a></li>
<li><a href="contact.php" <?php if ($currentPage == 'contact.php') {echo 'id="here"';} ?>>Contact</a></li>
</ul>
Let's say that the gallery pages contains hundreds of links gallery like gallery/photos1.php, gallery/photos2.php, gallery/photos3.php, gallery/photos4.php, gallery/photos5.php, gallery/photos6.php, gallery/photos7.php etc...
How would I identify the sub-pages so when we are there Gallery is highlighted?
Thank you!
Best,

Hello Siddhardha,
To get the details of a process you need to use Locator class from BPEL api. You can locate your process by listInstances method which accepts WhereCondition parameter used to build a query on process instances. Once you've found the process you were looking for you can use getAuditTrail method to retrieve audit trail of a given instance. You can also use setStatus() method from a BPELX java exec tag within your process and later retrieve it from instance handle by getStatus method.
A sample snippet to retrieve instance handles to all child processes of a given process:
StringBuffer sb = new StringBuffer();
Locator locator = new Locator(domain,domainpassword);
WhereCondition wc = new WhereCondition();
String query = sb.append(SQLDefs.AL_ci_root_id).append(" = ? ").toString();
wc.append(query);
wc.setLong(1,parentInstance);
IInstanceHandle[] ih = locator.listInstances(wc);
You can read more about querying processes on http://blogs.oracle.com/matt/2006/06/27?print-friendly=true
Radoslaw

Is it possible to use markers/special identifiers in CF.

Is it possible to use markers/special identifiers in Cold Fusion? If possible how do I test for markers at the end of say a zip code. E.x. 11691XX( XX is the special Marker).

IES48069774 wrote:
Is it possible to use markers/special identifiers in Cold Fusion?
Sure thing. You could, for example, use string functions.
If possible how do I test for markers at the end of say a zip code. E.x. 11691XX( XX is the special Marker).
It depends. What you want to test for: existence of the markers, the number of characters, the character values?

How to use string to substitude into a parameter ,look @ msg 4 more detail

How to use a screenname from an array of strings of screennames to set it to current screen
Example:
//screens
Form logo;
List cat,sub;
int back;//previous screen index
public String SCREEN[]={"logo","cat","sub"};
if (command=cmdBack) display.setCurrent(SCREEN[back]);
how???,i don't want to type in the screen name as i want it to be able to keep track of the screen displayed.
Please Help
thanks

hi...just one suggeation...u may like it ...
u can use a stack , as and when u view a screen push it onto the stack and with each press of "back" button u pop out . this way the back button functionality works perfectly no matter how u navigate between screens .
sanjib

How to use String toString?

hey guys,
I've 2-D array and i would like to printout using String toString method. I'v used that method to printout non-array values but I really don't know how to display 2-D array using the String toString method. Can someone please help me? thanks in advance!

I do not understand your question. Please post
whatever code you have and indicate where you are
stuck.I'm sure you're aware of the String toString method which is often used to display the output in different classes without the main method.
I've following code:
public static int bingoCard [][] = new int[SIZE][SIZE];
public BingoCard()   {
        Integer ran = 0;
        for (i = 0; i < SIZE; i ++) {
             if (i == 0) {
                min = 1;
                max = 15;
            } else {
                min = max + 1;
                max += 15;
//             System.out.println("Min: " + min + " " + "Max: " + max);
            // generate all 15 balls in this range
            for (j = min; j <= max; j++) {
                bC.add(new Integer(j));
//             // randomize the 15 balls
            for (j = 0; j < SIZE; j++) {
                while (bingoCard[i][j] == 0) {
                    ran = (Integer)bC.removeRandom(); // get Integer object back
                    if (max <= 15 && (ran.intValue() >= 1 && ran.intValue() <= 15))
                        bingoCard[i][j] = ran.intValue();
                    else if(max <= 30 && (ran.intValue() >= 16 && ran.intValue() <= 30))
                        bingoCard[i][j] = ran.intValue();
                    else if(max <= 45 && (ran.intValue() >= 31 && ran.intValue() <= 45))
                        bingoCard[i][j] = ran.intValue();
                    else if(max <= 60 && (ran.intValue() >= 46 && ran.intValue() <= 60))
                        bingoCard[i][j] = ran.intValue();
                    else if(max <= 75 && (ran.intValue() >= 61 && ran.intValue() <= 75))
                        bingoCard[i][j] = ran.intValue();
//                 System.out.println("Numbers in the card: " + bingoCard[i][j]);
        bingoCard[2][2] = 0;
Now, i want to dipslay the bingoCard[][] using following method
public String toString () { // return that array } instead of using following method which displays it for now
public static void display () {
        for ( i = 0; i < SIZE; i++) {
             System.out.print(" "+ columnTitles[i] +"   ");
        System.out.println();
        for (i = 0; i < SIZE; i++) {
            for (j = 0; j < SIZE; j++) {
                System.out.print(" "+bingoCard[j] +" ");
if (bingoCard[j][i] < 10)
System.out.print(" ");
System.out.println();
Any help would be really apperciated. =]

Special characters in XML structure when prepared using String

Hi,
   I am preparing an XML structure using 'String'. I print the prepared XML structure in the server log. Issue is that I am seeing extra characters([[ and ]]) that I am not printing.
Please let me know how to get rid of those.
Code Excerpt
        String xmlHeader = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>";
        String lsb_xmlcon = xmlHeader;
        logger.info("ReqXMLString Process 1 --->" + lsb_xmlcon);
        lsb_xmlcon = lsb_xmlcon +("\n");
        logger.info("ReqXMLString Process 1.1 --->" + lsb_xmlcon);
        lsb_xmlcon = lsb_xmlcon +("<REQUEST>");
        lsb_xmlcon = lsb_xmlcon +("\n");
        logger.info("ReqXMLString Process 1.2 --->" + lsb_xmlcon);
Log
ReqXMLString Process 1 ---><?xml version="1.0" encoding="utf-8" ?>
ReqXMLString Process 1.1 ---><?xml version="1.0" encoding="utf-8" ?>[[
ReqXMLString Process 1.2 ---><?xml version="1.0" encoding="utf-8" ?>[[
<REQUEST>
Thanks,
Message was edited by: 996913
This issue is observed only while running the code in server, not from Jdev.
When we append the additional tags without new line character, "\n", there are no extra characters being added. Also, in other case also. where we used "Marshaller" to prepare the XML, we have seen this issue.
After we set the below property to false, we got rid of the extra characters.
                        jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, false);
Apparently the insertion of new line when the code runs on server(Weblogic 10.3.6.0) is creating the issue.
Please let me know if anyone has come across a similar scenario.
Thanks,

I am building this XML in a servlet so ,right, DOM does process XML (even though a valid HTML file can be loaded into a DOM object) but if you build XML using DOM then write the XML out using PrintWriter and Transformer objects this will cause the XML to print out in your browser. If you view source on this XML you will see that the DOM object has translated all special characters to there &xxxx; equivalent. For a example: when the string (I know "cool" java) gets loaded into a attribute using the DOM object then wrote back out it looks like (I know &xxx;cool&xxx; java) if you view the source in your browser. This is what it should do, but the DOM object is not change the � to the "&xxxxx;". This servlet is acting as a gateway between a Java API and a windows asp. The asp will call the servlet expecting to get XML back and load it directly into a DOM object. When the windows DOM object gets the xml that I am returning in this servlet is throws a exception "invalid character" because the � was not translated to &xxxx; like the other characters were. According to the book HTML 4 in 24 hours (and other references) the eacute; or #233; are how you say "�" in HTML or XML. How do you say it?

How to retrieve IndividualStrings from a txt file using String Tokenizer.

hello can any one help me to retrieve the individual strings from a txt file using string tokenizer or some thing like that.
the data in my txt file looks like this way.
Data1;
abc; cder; efu; frg;
abc1; cder2; efu3; frg4;
Data2
sdfabc; sdfcder; hvhefu; fgfrg;
uhfhabc; gffjcder; yugefu; hhfufrg;
Data3
val1; val2; val3; val4; val5; val6;
val1; val2; val3; val4; val5; val6;
val1; val2; val3; val4; val5; val6;
val1; val2; val3; val4; val5; val6;
i need to read the data as an individual strings and i need to pass those values to diffarent labels,the dat in Data3 i have to read those values and add to an table datamodel as 6 columns and rows depends on the data.
i try to retrieve data using buffered reader and inputstream reader,but only the way i am retrieving data as an big string of entire line ,i tried with stringtokenizer but some how i was failed to retrive the data in a way i want,any help would be appreciated.
Regards,

Hmmm... looks like the file format isn't even very consistent... why the semicolon after Data1 but not after Data2 or Data3??
Your algorithm is reading character-by-character, and most of the time it's easier to let a StringTokenizer or StreamTokenizer do the work of lexical analysis and let you focus on the parsing.
I am also going to assume your format is very rigid. E.g. section Data1 will ALWAYS come before section Data2, which will come before section Data3, etc... and you might even make the assumption there can never be a Data4, 5, 6, etc... (this is why its nice to have some exact specification, like a grammar, so you know exactly what is and is not allowed.) I will also assume that the section names will always be the same, namely "DataX" where X is a decimal digit.
I tend to like to use StreamTokenizer for this sort of thing, but the additional power and flexibility it gives comes at the price of a steeper learning curve (and it's a little buggy too). So I will ignore this class and focus on StringTokenizer.
I would suggest something like this general framework:
//make a BufferedReader up here...
do
String line = myBufferedReader.readLine();
if (line!=null && line.trim().length()>0)
line = line.trim();
//do some processing on the line
while (line!=null);So what processing to do inside the if statement?
Well, you can recognize the DataX lines easily enough - just do something like a line.startsWith("Data") and check that the last char is a digit... you can even ignore the digit if you know the sections come in a certain order (simplifying assumptions can simplify the code).
Once you figure out which section you're in, you can parse the succeeding lines appropriately. You might instantiate a StringTokenizer, i.e. StringTokenizer strtok = new StringTokenizer(line, ";, "); and then read out the tokens into some Collection, based on the section #. E.g.
strtok = new StringTokenizer(line, ";, ");
if (sectionNo==0)
//read the tokens into the Labels1 collection
else if (sectionNo==1)
//read the tokens into the Labels2 collection
else //sectionNo must be 2
//create a new line in your table model and populate it with the token values...
}I don't think the delimiters are necessary if you are using end-of-line's as delimiters (which is implicit in the fact that you are reading the text out line-by-line). So the original file format you listed looks fine (except you might want to get rid of that rogue semicolon).
Good luck.

Error in XSLT mapping while using string functions

Hi All,
While using tokenize() and substring-before() functions in XSLT mapping,we are getting an error.The error message is Unexpected symbol "" So while using string functions in XSLT mapping do we have to use any header functions.
Please through light on syntax etc.,of string functions in XSLT.
Thanx in advance,
Lokesh Dhulipudi
Edited by: LOKESH DHULIPUDI on Dec 27, 2007 7:32 AM

Hi,
Hope you have gone thru this help:
http://w3schools.com/xsl/default.asp
Rgds, Moorthy

How to use string functions (substr or ltrim or replace) in OLAP universe.

cost element (0COSTELMNT) - 10 CHAR
Controlling area (0CO_AREA) - 4 CHAR
[0COSTELMNT].[LEVEL01].[[20COSTELMNT]].[Value]
cOST ELEMENT is compounded/prefixed with Controlling Area. I just want to see cost element without conrolling area in the BO report.
Currenlty BO unierse is build based on bex query. I am able to suppress the compounding object in bex query by chaning controlling area to 'No display'. But still BO Webi report displaying compounded values in the report. (Bex report works as expected)
eg: Current display in reort.
controlling area/cost element.
AB00/2222
AB00/2223
AB00/2224
Wanted like below:
2222
2223
2224
I think by using string fucntions (substring, ltrim or replace etc.), I can get the required result. But I am having issues with syntax. I have used like below.
substr(0COSTELMNT ; 5 ; 10)
substr(0COSTELMNT; 5 ; Length(0COSTELMNT)-5)
substr(0COSTELMNT; Pos(0COSTELMNT;"/")+1;10)
ltrim(0COSTELMNT,'AB00/')
What is the syntax for substring/replace functions in OLAP universe. Technical name of cost element in OLAP universe is [0COSTELMNT].[LEVEL01].[[20COSTELMNT]].[Value].
I want to fix this at universe level not at report level as i am using cost element in filter/variable section of the report. Please provide me syntax for above example.

Hi,
In fact SAP BW MDX supports limited string manipulation and only with NAME and UNIQUENAME attributes.
Here are some samples that you can use in universes:
MID([0COSTELMNT].currentmember.NAME,1,4)
LEFT([0COSTELMNT].currentmember.NAME,2)
RIGHT([0COSTELMNT].currentmember.NAME,3)
MID([0COSTELMNT].currentmember.UNIQUENAME ,1,4)
LEFT([0COSTELMNT].currentmember.UNIQUENAME ,2)
RIGHT([0COSTELMNT].currentmember.UNIQUENAME ,3)
Didier

My iPhone 4 Bluetooth, using ios7, cannot identify any other bluetooth device (even other apple products). Says device not supported. How to solve this problem?

My iPhone 4 Bluetooth, using ios7, cannot identify any other bluetooth device (even other apple products). Says device not supported. How to solve this problem?

Supported Bluetooth Profiles
It is not supposed to detect other Apple products via Bluetooth.

How to search for upper/lower case using string using JAVA!!!?

-I am trying to write a program that will examine each letter in the string and count how many time the upper-case letter 'E' appears, and how many times the lower-case letter 'e' appears.
-I also have to use a JOptionPane.showMessageDialog() to tell the user how many upper and lower case e's were in the string.
-This will be repeated until the user types the word "Stop".
please help if you can
what i have so far:
[code]
public class Project0 {
public static void main(String[] args) {
String[] uppercase = {'E'};
String[] lowercase = {'e'};
String isOrIsNot, inputWord;
while (true) {
   // This line asks the user for input by popping out a single window
   // with text input
   inputWord = JOptionPane.showInputDialog(null, "Please enter a sentence");
   if ( inputWord.equals("stop") )
    System.exit(0);
   // if the inputWord is contained within uppercase or
   // lowercase return true
   if (wordIsThere(inputWord, lowercase))
    isOrIsNot = "Number of lower case e's: ";
   if (wordIsThere(inputword, uppercase))
     isOrIsNot = "number of upper case e's: ";
   // Output to a JOptionPane window whether the word is on the list or not
   JOptionPane.showMessageDialog(null, "The word " + inputWord + " " + isOrIsNot + " on the list.");
} //main
public static boolean wordIsThere(String findMe, String[] theList) {
for (int i=0; i<theList.length; ++i) {
   if (findMe.equals(theList[i])) return true;
return false;
} // wordIsThere
} // class Lab4Program1
[/code]

So what is your question? Do you get any errors? If so, post them. What doesn't work?
And crossposted: how to search for upper/lower case using string using JAVA!!!?

Use string as identifier in array?

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