Operator - and =

hello everybody
i wanted to ask what's the diffrence between the -> operator and the => operator
thank you
amit

Hi Amit,
'=>' is GT.
' -> ' is used to refer the elements of an object.
Reward if useful.

Similar Messages

Swf link not working in Firefox, Opera and Internet Explorer but works in Safari

Hi,
I'm sorry but Im a real newbie and really need help!!!
On the homepage of my website I have put a swf file that I linked to another page in my website through the div a href link and it displays great on safari and links, however in other browsers, when i try to click on it, it comes up with the link at the bottom of the browser (where it sometimes says Done), however it doesnt actually link, it jsut stays on the homepage.
Here is the coding i put in:
<div id="products2">
 
 <a href="Our_brands/index.html">
 <script type="text/javascript">
AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0','wid th','449','height','449','title','Products','src','Productions/boxes3','quality','high','p luginspage','http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=Shockwav eFlash','movie','Productions/boxes3' ); //end AC code
 </script>
 <noscript>
 <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" width="449" height="449" title="Products">
 <param name="movie" value="Our_brands/boxesnew.swf" />
 <param name="quality" value="high" /><param name="SCALE" value="noborder" />
 <param name="allowScriptAccess" value="always"/>
 <embed src="Our_brands/boxesnew.swf" width="449" height="449" quality="high" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" allowScriptAccess="always" scale="noborder"></embed>
 
 
 </object>
 </noscript>
 </a>
 
 </div>
Could someone please tell me where I am going wrong?
I would REALLY appreciate it.
Thank you in advance!!

I'm doing it for a client and they dont want it put up on the server yet, I wish I could put it up bc I have no idea what I'm doing!
Basically I wanted a swf file from Flash to display a range of products (I have turned all the products into buttons) and then I put coding into all the buttons to on release getURL which work in the swf file, however when I put the swf file into dreamweaver, the buttons worked in hover state, but the action scripting didn't work to link the swf file to another page in the website (the index in Our_brands folder).
So i decided to make it link to the index.html in Our_brands folder from wrapping the swf box in a div tag and linking the div tag <a href="Our_brands/index.html"> which links it great in Safari but wont link in Firefox, Opera and Internet Explorer.
Does that make any sense?
Sorry if it doesn't.
Thanks for the quick reply as well!!!

My web site has a link which automatically configures an email. Doesn't work in Firefox 5.0 but OK in IE 8, Opera and Netscape. v

My web site is generated by Second Site , author John Cardinal, and contains email links which when selected automatically createsan email which all you need to do is fill in the body and send it. This has worked in the past in Firefox and does work now using IE 8, Opera, and Netscape browsers but does not work when using my Firefox browser neither locally on my computer or in my Internet website. Firefox is my browser of choice. This has worked in the past using Firefox.
My web site is www.schulteis.com/omnibus/. On the presentation page, on the bottom, where it identifies Genealogist: Site Administrator. Select it and it may work for you. John Cardinal tested it on his local machine and it worked for him. His response to me was,
"It's very likely that this is some sort of browser configuration error, and it's probably related to using a web-based email client, In
Firefox, look under Options > Applications and see how the "Mailto" Content type is configured. It should probably say "Use Yahoo Mail" [it does]. I have never configured a browser to use a web-base email client, so I can't help more than that.
Since this works fine on my computer and on my Internet site when using browsers IE 8, Opera, and Netscape but not Firefox, and I didn't do anything special for any browser to cause it to work, don't know what I could have done wrong for Firefox.
I am using Yahoo mail.
Thanks for your help
Donald
[email protected]

I'm also running FF 36.0.4 on a Win 7 machine. Here is what I see when I "open" the map (from the server - not inside DW):
The map area stays white with no image even after several minutes. The cursor does change to a hand when over the area where the map should be and if I click and drag there the cursor switches to the closed hand - so it's acting like the map is there and can be moved - but just no map shows up.
I'll run it though the validator. Thanks!

Since I updated Firefox I have to constantly re log-in to my Yahoo account such as email. Every time I leave the page I have to log-in to get back into it. I also run OPERA and I do not have that problem with them. I stay logged in. Any suggestions?

I have windows Vista and have the updated version of Firefox. I also can run OPERA and LUNASCAPE with no problems. When running Firefox I have to constant re log-in to my Yahoo account every time I leave the page. For example: I log in to check my email on Yahoo and then leave my email page. Then when I return to recheck my email I have to log in all over again. I can't stay logged in. If I run my OPERA browser I stay logged in for days without having to sign in all over again.

Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache.
Note: ''This will temporarily log you out of all sites you're logged in to.''
To clear cache and cookies do the following:
#Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
#Under "Time range to clear", select "Everything".
#Now, click the arrow next to Details to toggle the Details list active.
#From the details list, check ''Cache'' and ''Cookies'' and uncheck everything else.
#Now click the ''Clear now'' button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.
Did this fix your problems? Please report back to us!
"Remove Cookies" from sites causing problems:
Tools > Options > Privacy > Cookies: "Show Cookies"
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* You can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''

I have changed operator and also changed IOS and did a back up of my old phone in Itunes so i would keep all my contacts etc. Now when i want to get everything back in the phone, Itunes asks me for a password, which i do not have. How to bypass this?

I have changed operator and also changed IOS and did a back up of my old phone in Itunes so i would keep all my contacts etc. Now when i want to get everything back in the phone, Itunes asks me for a password, which i do not have since i did not enter any password when i did the back up. Is there any way I can bypass this password request? Otherwise i have lost all my contacts etc.
Greatful for help.

Contacts are designed to be synced to a supported application on the computer or a cloud service like Gmail, iCloud, or an Exchange server.
Have you failed to use the device as designed?

Unable to retrieve the operations and entities during service introspection

Hi,
 I created one sample flex mobile project using flash builder 4.5, i would like to invoke the web service (wsdl file), which is developed in java and hosted in remote machine server.i want to call a one getEmployeeList method from the webservice.
 In flash builder i used the menu Data->connect to web service , i gave the url, changed the service name and package name, after that i clicked next button,
the service introspection dialog appears and after a few seconds, flash builder 4.5 shows the message "Unable to retrieve the operations and entities from the web service" and "There was an error during service interospection".
 I try to open the url in the browser window i could able to see the wsdl file.so, please help me to solve this issue!
Thanks & Regards,
siva
Message was edited by: siva csc

same problem also on my xampp installation , it worked perfect with REST service in the previous flex 3 release , is it my apache conf or something related on Flash builder
this happens when I call my function that connect to mysql do the query and returns the array object
Err log from Flash Builder 4:
There was an error during service introspection.
 Warning: require_once(Zend/Loader/Autoloader.php) [<a href='function.require-once'>function.require-once</a>]: failed to open stream: No such file or directory in C:\xampp\htdocs\MYAPP\bin-debug\gateway.php on line 23 Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required 'Zend/Loader/Autoloader.php' (include_path='.;C:\xampp\php\pear\;C:/xampp/htdocs/ZendFramework/library') in C:\xampp\htdocs\MYAPP\bin-debug\gateway.php on line 23 
thanks in advance
P

Approximate operator and recursive call function in abap

Dear expert,
Please give me an example about Approximate operator and recursive call function in abap
thanks so much

Hi
About Approximate operator, you can go to tcode 'ABAPDOCU', searching CO,CN,CA etc...each of them have example there.
And recursive function,
Say here is a FM,
FUNCTION recursive_get_number.
*import im_num type i.
*export ex_num type i.
ex_num = im_num + 1.
IF ex_num GE 100.
   EXIT.
ELSE.
   CALL FUNCTION recursive_get_number
        EXPORTING
           im_num = ex_num
        IMPORTING
           ex_num = ex_num.
ENDIF.
ENDFUNCTION.
When you call this function from outside with importing parameter '1', then will return you 100.
regards,
Archer.

Iw72 service order + Link b/w operations and PRTs

Hello Friends,
So here is my problem. In transctin iw72 ( service order ) there is a tab called "operations". In tab operatinos I can attatch Resourse / tool ( table AFFH ( PRT assignment data for the work order ) and structure AFFHD (Structure of the PRTs in orders). So I can do this all manually, and after pressing save, the PRTs is attatched to the operation. ( pls note I want to attatch a documet as PRTs to the operations)
Now I want to do this via any FM or BAPI, but unfortunatelly I was not able to find any such bapi, ( I mean, I have find bapi to create the operation, and I also find the bapi to create the document, and now I have to find the bapi which store the PRTs ( in my case document ) to that operation ( or order ).
In table AFFH, I have reference to the order, but not to the operation, so actually using this table I can attatch the PRTs to one order, but my req is to attatch to the operation.
So I debug the standard code, to find out how they are doing, but could not find much, any tip how I can make it more simple to find out, what is going on in starndard code.
Regards,
Message was edited by:
Shah H
Message was edited by:
Shah H

hi,
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617ca9e68c11d2b2ab080009b43351/frameset.htm
For debugging tutorial:
http://help.sap.com/saphelp_erp2005vp/helpdata/en/5a/4ed93f130f9215e10000000a155106/frameset.htm
http://www.sapdevelopment.co.uk/tips/debug/debughome.htm
http://www.sap-basis-abap.com/sapab002.htm
System Debugging
If you set this option, the Debugger is also activated for system programs
(programs with status S in their program attributes). When you save breakpoints, the System Debugging setting is also saved.
Update Debugging
Update function modules do not run in the same user session as the program that is currently running in the ABAP Debugger.
These function modules are therefore not included in debugging.
Only if you select the Update Debugging option can you display and debug them after the COMMIT WORK.
Normal Debugging
Normal debugging is the one we do it by the normal dynamic break points or by /H or by using stattic break points.
You can switch to diffferent debuggin modes while processing.
Regards
Reshma

How to fetch the components operation and workcenter. pp report

Hi experts,
 this report is for pp module ,routing details,in our program
only give the ouput of the header materials operation and workcenter
but not get into components.
before we clariy if the materilas is e or x -
check the plpo operation and crhd workcter
or else
if the material is f -
get the vendor details---- i ll not using this onle
before we need to adopt it only e or x only
TABLES : MAST,MARC,CRHD,PLPO.
TYPES : BEGIN OF IT_FINAL,
 POSNR LIKE STPOX-POSNR,
 IDNRK LIKE STPOX-IDNRK,
 OJTXP LIKE STPOX-OJTXP,
 MENGE LIKE STPOX-MENGE,
 MEINS LIKE STPOX-MEINS,
 VORNR LIKE PLPO-VORNR,
 ARBID LIKE PLPO-ARBID,
 OBJTY LIKE PLPO-OBJTY,
 LTXA1 LIKE PLPO-LTXA1,
 VGE01 LIKE PLPO-VGE01,
 VGW01 LIKE PLPO-VGW01,
 VGW02 LIKE PLPO-VGW02,
 ARBPL LIKE CRHD-ARBPL,
 LIFNR LIKE EINA-LIFNR,
 INFNR LIKE EINA-INFNR,
 END OF IT_FINAL.
DATA : BEGIN OF CRHD_IDEL OCCURS 1000,
 OBJID LIKE CRHD-OBJID,
 ARBPL LIKE CRHD-ARBPL,
 END OF CRHD_IDEL.
DATA: BEGIN OF ISTPO OCCURS 1000.
 INCLUDE STRUCTURE STPOX.
DATA: END OF ISTPO.
DATA: BEGIN OF MATCAT OCCURS 1000.
 INCLUDE STRUCTURE CSCMAT.
DATA: END OF MATCAT.
DATA : BEGIN OF ITAB OCCURS 0,
 MATNR LIKE MAST-MATNR,
 WERKS LIKE MAST-WERKS,
 END OF ITAB.
SELECT-OPTIONS : P_MATNR FOR MAST-MATNR.
PARAMETERS : P_WERKS TYPE MAST-WERKS.
DATA : IT_FINAL_IDEL TYPE STANDARD TABLE OF IT_FINAL
 WITH HEADER LINE INITIAL SIZE 100 WITH DEFAULT KEY.
DATA : IT_CRHD_IDEL LIKE CRHD OCCURS 100 WITH HEADER LINE.
DATA: IT_STB LIKE ISTPO OCCURS 0 WITH HEADER LINE.
DATA : IT_MAPL_IDEL LIKE MAPL OCCURS 100 WITH HEADER LINE.
DATA :IT_ITAB_IDEL LIKE MARC OCCURS 100 WITH HEADER LINE.
DATA : IT_PLPO_IDEL LIKE PLPO OCCURS 100 WITH HEADER LINE.
SELECT MATNR WERKS FROM MAST INTO TABLE ITAB
 WHERE MATNR IN P_MATNR AND WERKS = P_WERKS.
START-OF-SELECTION.
CLEAR ISTPO. REFRESH ISTPO.
LOOP AT ITAB.
CALL FUNCTION 'CS_BOM_EXPL_MAT_V2'
 EXPORTING
 CAPID = 'PP01'
 MEHRS = 'X'
 MMAPS = ' '
 MDMPS = ' '
 BREMS = 'X'
 DISMM = ' '
 LIFNR = ' '
 WEBAZ = ' '
 DATUV = SY-DATUM
 MTNRV = ITAB-MATNR
 WERKS = P_WERKS
 EMENG = '1'
 STKKZ = ' '
 FBSTP = ' '
 FTREL = ' '
 IMPORTING
 TOPMAT = W_TOPMAT
 DSTST = DSTST
 TABLES
 STB = ISTPO
 MATCAT = MATCAT
 EXCEPTIONS
 ALT_NOT_FOUND = 1
 CALL_INVALID = 2
 MATERIAL_NOT_FOUND = 3
 MISSING_AUTHORIZATION = 4
 NO_BOM_FOUND = 5
 NO_PLANT_DATA = 6
 NO_SUITABLE_BOM_FOUND = 7
 OTHERS = 8.
WRITE: / W_TOPMAT-MATNR UNDER TEXT-H00 COLOR COL_HEADING,
 W_TOPMAT-MAKTX UNDER TEXT-H01 COLOR COL_HEADING.
 SELECT MATNR WERKS OBJID BESKZ FROM MARC INTO CORRESPONDING FIELDS OF TABLE IT_ITAB_IDEL
 WHERE MATNR = ITAB-MATNR AND BESKZ = 'X' OR BESKZ = 'E' OR BESKZ = 'F'.
 SELECT MATNR WERKS PLNTY PLNNR LIFNR FROM MAPL INTO CORRESPONDING FIELDS OF TABLE IT_MAPL_IDEL
 WHERE MATNR = ITAB-MATNR AND
 WERKS = 'IN01' .
SELECT PLNTY PLNNR VORNR ARBID OBJTY LTXA1 VGE01 VGW01 VGW02 PLIFZ FROM PLPO INTO CORRESPONDING FIELDS OF TABLE IT_PLPO_IDEL
 FOR ALL ENTRIES IN IT_MAPL_IDEL
 WHERE PLNTY = IT_MAPL_IDEL-PLNTY AND
 PLNNR = IT_MAPL_IDEL-PLNNR AND
 WERKS = 'IN01' AND ARBID <> 0.
LOOP AT ISTPO.
IT_FINAL_IDEL-POSNR = ISTPO-POSNR.
IT_FINAL_IDEL-IDNRK = ISTPO-IDNRK.
IT_FINAL_IDEL-OJTXP = ISTPO-OJTXP.
IT_FINAL_IDEL-MENGE = ISTPO-MENGE.
IT_FINAL_IDEL-MEINS = ISTPO-MEINS.
LOOP AT IT_PLPO_IDEL.
IT_FINAL_IDEL-VORNR = IT_PLPO_IDEL-VORNR.
 IT_FINAL_IDEL-ARBID = IT_PLPO_IDEL-ARBID.
 IT_FINAL_IDEL-OBJTY = IT_PLPO_IDEL-OBJTY.
 IT_FINAL_IDEL-LTXA1 = IT_PLPO_IDEL-LTXA1.
 IT_FINAL_IDEL-VGE01 = IT_PLPO_IDEL-VGE01.
 IT_FINAL_IDEL-VGW01 = IT_PLPO_IDEL-VGW01.
 IT_FINAL_IDEL-VGW02 = IT_PLPO_IDEL-VGW02.
ENDLOOP.
 READ TABLE IT_CRHD_IDEL WITH KEY OBJID = IT_PLPO_IDEL-ARBID.
 IT_FINAL_IDEL-ARBPL = IT_CRHD_IDEL-ARBPL.
 APPEND IT_FINAL_IDEL.
 CLEAR : IT_FINAL_IDEL,IT_PLPO_IDEL,IT_CRHD_IDEL,ISTPO.
ENDLOOP.
WRITE :/6 W_TOPMAT-MATNR, 25 W_TOPMAT-MAKTX.
 LOOP AT IT_FINAL_IDEL.
 WRITE :/ IT_FINAL_IDEL-POSNR,
 IT_FINAL_IDEL-IDNRK,
 IT_FINAL_IDEL-OJTXP,
 IT_FINAL_IDEL-MENGE,
 IT_FINAL_IDEL-MEINS,
 IT_FINAL_IDEL-VORNR,
 IT_FINAL_IDEL-ARBID,
 IT_FINAL_IDEL-OBJTY,
 IT_FINAL_IDEL-LTXA1,
 IT_FINAL_IDEL-VGE01,
 IT_FINAL_IDEL-VGW01,
 IT_FINAL_IDEL-VGW02,
 IT_FINAL_IDEL-ARBPL.
 ENDLOOP.
REFRESH IT_FINAL_IDEL.
SKIP.
ENDLOOP.
regards
ds

u have the plant and component from STPOX....using this goto MARC table and check BESKZ field...

Inside border of table changes to white in opera and ie8?

Does anyone know why Opera and internet explorer change the inside borders of the table to white?
In Safari and Firefox it stays black.
Here is a link to the website
EDIT:
I now attached a screen shot of the table of what it looks like in opera.

I no longer worry about Netscape or IE5.5 as these browsers are officially obsolete. But IE6 is still used by a enough people worldwide who are on older operating systems & for whom upgrading to IE7 or IE8 may not be an option. What are they supposed to do?
Personally I don't want to upgrade out of IE6 because I still need it to test web pages. If I want to look at your site in IE7 I will jump to my laptop. And if I want to look at it in IE8, I will jump to my Vista OS. Put on the IE Png fix and you won't have any unhappy site visitors. If you force people to upgrade to a browser they cannot possibly support, you will drive clients away - guaranteed. IE6 sucks, we all know this. But it's still here so we need to deal with it.
Nancy O.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
www.alt-web.com/
www.twitter.com/altweb
www.alt-web.com/blogspot.com

What is the differene between filter operation and NL semi join?

Hi, all.
The oracle is 10gR2 and 11gR2.
There are differences between filter operation and HASH/MERGE semi join in processing subqueries.
But I could not see the difference between filter operation and NL semi join?
(the only thing I know is that filter operation has caching mechanism, but I am not sure in case of NL semi)
What are the pros and cons of each of them?
Thanks in advance.
Best Regards.

>
The oracle is 10gR2 and 11gR2.
>
Those aren't 'version's. What are the 4 digit versions?
>
There are differences between filter operation and HASH/MERGE semi join in processing subqueries.
>
What are they? When you make a statement like that post the information (and links to it) that backs up your statement.
>
But I could not see the difference between filter operation and NL semi join?
(the only thing I know is that filter operation has caching mechanism, but I am not sure in case of NL semi)
>
We can't 'see the difference' either; you didn't post anything for us to look at.
>
What are the pros and cons of each of them?
>
Each of what? Again - you need to be as specific as possible if you want specific feedback.
Also, since you generally should not use hints in production code anyway what difference does it make what the differences are? Oracle will make the choice.
Without anything specific to comment on about all we can do is provide several links that talk about joins and how to produce and examine them. These are all from Jonathan Lewis's Scratchpad:
http://jonathanlewis.wordpress.com/?s=semi-join
http://jonathanlewis.wordpress.com/2010/12/20/index-join-4/
http://jonathanlewis.wordpress.com/2010/08/15/joins-mj/ -- merge joins
http://jonathanlewis.wordpress.com/2010/08/10/joins-hj/ -- hash joins
http://jonathanlewis.wordpress.com/2010/08/09/joins-nlj/ -- nested loop joings
http://jonathanlewis.wordpress.com/2011/06/08/how-to-hint-1/ -- how to hint for joins
Check out those articles. Pay attention to how, in each one, he doesn't just provide a text description but also provides code and explains the code.
In other words he provides all of the specific information needed to illustrate what he is talking about. That is what you need to do if you need help with a specific topic: provide the query, plans and output that you yourself are using as the basis of your question. That lets us see EXACTLY what you are talking about.

Key Operation and Sub operation PM order

Hi,
What is the key (table - field) which determines the relationship between the main operation and the sub operation?
I mean how can you detemrine that suboperation X is indeed a sub operation of this particular operation Y? You have AUFNR, AUFPL, but i'm missing somethin...
regards,
bert

thanks,
APLZL of main operation and SUMNR of suboperation

In operator and subquery

I have created a sql query for oracle rdbms. I am passing a particular id in the subquery of my main query . I have one major difference in the query whenever i use a subquery with IN operator and using IN_list values in IN operator. I found that whenever after using IN operator with sub-query ,all the tables were going for full tablescan but if i used in_list values in the IN operator , all the required indexes were getting used.
This is part of the query
from ems_exception
left outer join EMS_EXCEPTION_LINK_MAP
on (ems_exception.ID = EMS_EXCEPTION_LINK_MAP.EXCEPTION_ID
and ems_exception.id in (SELECt ID
FROM (SELECT inner.*,ROWNUM rn
 FROM (SELECT /*+ UNNEST */ e.id,max(e.created_ts) aa
 FROM ems_exception e
 join ems_status_def
 on ( e.status_id =ems_status_def.id and ems_status_def.id in (1,2,3))
 join ems_exception_link_map
 on (e.id = ems_exception_link_map.exception_id)
 join ems_link
 on (ems_link.id = ems_exception_link_map.link_id)
 group by e.id
 order by aa desc
 ) inner) outer
 where outer.rn>=201 and outer.rn <=400 ))
If i use values instead of the sub-query , the query plan was optimum . Is combination of IN operator and subquery bad in terms of query performance?

It's not inherently bad - but it does depend on the optimizer getting good estimate of the data volume.
Did you test with 200 distinct values in your IN list, and can you see in the execution plan Oracle estimate of how many rows the subquery would generate.
Regards
Jonathan Lewis

Link between Oder number, Operations and PRT ?

Hello,
I am trying to find the link between Ordeer number (T-code IW32) , its Operations and PRT linked to Operations.
Can someone shed some light on the links for these in PM tables ?
Thanks.
Regards,
Rajesh.

Hi,
Not sure of the table links..
Use the BAPI BAPI_ALM_ORDER_GET_DETAIL..to get the operations, PRT other details for the service order..
Thanks
Naren

String. Relational operator and odd printing

Hi,
I'm wondering if someone could help me with this puzzlement I have. I've search the forum and I search the tutorial with "string and relation operator" and "string and compare" but I couldn't find any answer.
Basically, I want to make sure that we can't use "<", ">", ">=", and "<=" between two strings because I got compiler error. Tutorial only says to use equals() method but I can't find anything that says "Don't use relational operator such as... !"
Another question I have is I have this test code just to know String more.
<code>
public class Test {
static void compare (String s1, String s2) {
System.out.println ("s1 is = " + s1);
System.out.println ("s2 is = " + s2);
System.out.println (s1 + " == " + s2 + s1==s2); //this line prints "false"
System.out.println (s1 + " != " + s2 + s1!=s2); //this line prints "true"
System.out.println ("s1.equals(s2): " + s1.equals(s2));
public static void main (String args[]) {
compare ("Hello", "huhaha");
compare ("Hello", "hello");
compare ("Hello", "Hello");
</code>
I'm wondering why the line that I commented prints "false" and "true" where I expected to print the value of s1 which is "Hello" and s2 which is "huhaha"?
Sorry if the question seems stupid. I do admit I'm a little slow.
Thank you!

This question is asked all the time on this forum.
Basically, the "==" operator between any two Objects (Strings included) is comparing instances. That is, are the two Objects references to the same "real" instance? If so, it will return true. However, just because two Strings contain the same value does not mean they are the exact same instance. So two different strings which contain the value "XXX" could still have "==" return false. For this reason, it is recommended that (in general) you use "==" and "!=" as it relates to Objects only when comparing them to null (there is only one null).
Instead, use the "equals()" method. There are no "<", "<=", ">", or ">=" operators in relation to Objects. Instead, use the Object's compare() method, if available (which it is for Strings).

Operator - and =

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