Switch stmt using String?

Ok, haven't used the switch statement in some time and don't remember how to get it to recognize a String as the case value. Can I do that or must the case value be a number or char? Thanks.

...why don't you use hashcodes!?!It's a hack, and it isn't guaranteed to work because:
1. Different Strings are not guaranteed to generate different hashcodes.
2. The algorithm used to generate the hashcode is not guaranteed to be the same on different platforms.
3. The algorithm used to generate the hashcode is not guaranteed to be the same between different java versions.
For example compare the hashcodes of "Aa" and "BB" or "Bb" and "CC" etc ...

Similar Messages

Switching between 2 string values

This is probably a trivial question, but how do I switch between 2 string values to be sent to one input terminal of a larger concatonated string function. The values need to be changed every 100ms or so.
Thanks
mhaque
Solved!
Go to Solution.

Why so complicated???
You can do this particular string manipulation in a single atomic operation using "Append True/False String"
LabVIEW Champion . Do more with less code and in less time .
Attachments:
AppendTF.png ‏3 KB

Switch with a string?

Is it possible to do a switch with a String?
The following does not seem to work
String a = "bubble";
switch(a) {
case "tricks":
    System.out.println("This trick doesn't seem to work");
    break;
case "bubble":
    System.out.println("It's gone and burst my bubble");
    break;
}Any ideas?
Thanks
Bubble

Brannor:
E.g. switch (testString.hashCode()) {
case ("case 1".hashCode())...This won't work. You need a constant expressions for the cases, a method like hashCode() won't work there.
Yogee:
1. Different Strings are not guaranteed to generate different hashcodes.True, but its such a unlikely event that the strings' hashcodes will be equal that someone would still be able to do this reasonably in some situations. but I wouldn't do this in my code
2. The algorithm used to generate the hashcode is not guaranteed to be the same on different platforms.There is a String hashcode formula, and its not ambiguous. The method is implemented entirely in java and so it will be the same on different platforms. Object.hashCode() though can be different on different platforms.
3. The algorithm used to generate the hashcode is not guaranteed to be the same on different
java versions.We can use that argument against writing anything in the API though, since the language can always change. Has Sun ever indicated that they might want to change the API specs for Strings's hashCode?

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.

I was initially in the UK apps store and i switched to the USA apps store with an itunes gift card..since then i cannot see my previous purchases in the UK store,, now i'm back in the UK and want to switch back using a £15 itunes gift card but can't..HELP

I was initially in the UK apps store and i switched to the USA apps store with a $15 itunes gift card because my credit card from the UK expired..since the switch i couldn't find my previous purchases in the UK store,, now i'm back in the UK and want to switch back using a £15 itunes gift card but whenever i try to switch, itunes tells me i still have credit on my existing US gift card, meanwhile i only have $0.22 which can't buy anything at the apps store..how dow i clear up the balance and switch to the UK apps store...HELP!!!

You might just have to contact Apple and ask them to remove it (losing it). Usually people clear a balance by buying one song and having the exact remainder charged to their credit card, but if you don't have a US credit card you cannot do that.
iTunes Customer Service Contact - http://www.apple.com/support/itunes/contact.html

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

Why does firefox hang up and say it "got confused", when I try to switch from using facebook as myself to using facebook as a page I manage?

firefox hangs up and says it "got confused", when I try to switch from using facebook as myself to using facebook as a page I manage.

Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
* https://support.mozilla.com/kb/Safe+Mode
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
* Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
* Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
In Firefox 4 you can use one of these to start in [[Safe mode]]:
* Help > Restart with Add-ons Disabled
* Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)
* https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

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?

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

Looking for a way to switch views using Javascript

Hi ! I'm currently studying Acrobat 3D. I've got a PDF document with a 3D Annotation, which was imported from a U3D file. I defined 3 views : "initial", "front" and "top". My problem is that I'm looking for a way to switch views using Javascript. In fact, when I list cameras using the following code, I only get one camera called "DefaultView". So my question is : where has my "initial", "front" and "top" views been ? Is there a way I can switch between them using Javascript ? for(i=1;i<scene.cameras.count;++i) { Cam = scene.cameras.getByIndex(i); console.println("camera " + i + " : " + Cam.name); } Thank you very much in advance. françois

Are the dates on these entries correct??!! Doesn't seem like it. Anyway, just in case, here's some code to help:
//=========================================================
backgrounder = new RenderEventHandler();
backgrounder.onEvent = function(event)
runtime.removeEventHandler(this);
canvas = event.canvas;
background = canvas.background;
keyer = new KeyEventHandler();
keyer.onEvent = function(event)
switch (event.characterCode)
case 49:
cam = scene.cameras.getByIndex( 0 );
canvas.setCamera( cam );
break;
case 50:
cam = scene.cameras.getByIndex( 2 );
canvas.setCamera( cam );
break;
case 51:
cam = scene.cameras.getByIndex( 3 );
canvas.setCamera( cam );
break;
runtime.addEventHandler( keyer );
runtime.addEventHandler(backgrounder);
//inform user
console.println("Use the 1,2,3 Keys to toggle between cameras");
//===============================================

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!!!?

I currently live in Australia and am thinking of buying a mini Ipad3g. However, I'll be moving back to the UK soon. Is it easy to switch between using the 3G in different countries? Thanks

I currently live in Australia and am thinking of buying a mini Ipad3g. However, I'll be moving back to the UK soon. Is it easy to switch between using the 3G in different countries? Thanks

iPads work worldwide. Just get a local iPad dataplan and sim.

Java Switch Statement with Strings

Apparently you cant make a switch statement with strings in java. What is the most efficient way to rewrite this code to make it function similar to a swtich statement with strings?
switch (type){
 case "pounds":
 type = "weight";
 break;
 case "ounces":
 type = "weight";
 break;
 case "grams":
 type = "weight";
 break;
 case "fluid ounces":
 type = "liquid";
 break;
 case "liters":
 type = "liquid";
 break;
 case "gallons":
 type = "liquid";
 break;
 case "cups":
 type = "liquid";
 break;
 case "teaspoons":
 type = "liquid";
 break;
 case "tablespoons":
 type = "liquid";
 break;
 }

I'd create a Map somewhere with entries "liquid", "weight", etc.
public class Converter {
 private static Map<String, List<String>> unitMap = new HashMap<String, List<String>>();
 private static String[] LIQUID_UNITS = { "pints", "gallons", "quarts", "millilitres" };
 private static String[] WEIGHT_UNITS = { "pounds", "ounces", "grams" };
 static {
 List<String> liquidUnits = new ArrayList<String>();
 for (int i = 0; i < LIQUID_UNITS.length; i++) liquidUnits.add(LIQUID_UNITS));
unitMap.put("liquid", liquidUnits);
... // other unit types here
public String findUnitType(String unit) {
for (String unitType : unitMap.keySet()) {
List<String> unitList = unitMap.get(unitType);
if (unitList.contains(unit))
return unitType;
return null;
It might not be more "efficient", but it's certainly quite readable, and supports adding new units quite easily. And it's a lot shorter than the series of if/else-ifs that you would have to do otherwise. You'll probably want to include a distinction between imperial/metric units, but maybe you don't need it.
Brian

HT1586 What's the best HDMI switcher to use for Apple TV?

What's the best HDMI switcher to use for Apple TV? My widescreen TV has only one HDMI outlet and it is in use.
Thanks,
Joanna

Anyone sold by MONOPRICE.COM are really worth buying!

Switch stmt using String?

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