String.equals question...

Hey, this is probably an easy problem for those who know what they're doing! I'm just a Computing student afterall.
Why does this if statement not return true:
     public String translate(String opc) {
          String opCode = opc.substring(0,2);
          String mnemonic;
          if (opCode.equalsIgnoreCase("60"))
               mnemonic = "iadd";
etc
According to System.out.println
the opc is 6000
and opCode is 60
Help needed! Thanks!
Graham

Yeah it was just me being stupid, hehe. I had a list of if statements after each other, instead of else ifs, and so the else at the end was overwriting the variable. Eeek.
Please tell me all programmers make as stupid mistakes! :p
Thanks
Graham

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Help with StuckThread in java.lang.String.equals(String.java:619)

I periodically get a stuck Execute thread on my Weblogic 8.15 server
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####<Dec 4, 2005 10:47:25 AM EST> <Error> <WebLogicServer> <nybill>
<myserver> <weblogic.health.CoreHealthMonitor> <<WLS Kernel>> <>
<BEA-000337> <ExecuteThread: '4' for queue: 'weblogic.kernel.Default' has
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tid=0x7720eb98 nid=0xd68 runnable [571f000..571fdb0]
at java.lang.String.equals(String.java:619)
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at java.util.LinkedList.contains(LinkedList.java:176)
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ncss.billing.broadviewBill.xml.XMLBillCreation.getDailyCallSummary(XMLBillCr
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at
ncss.billing.broadviewBill.xml.XMLBillCreation.getGraphs(XMLBillCreation.jav
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ncss.billing.broadviewBill.xml.XMLBillCreation.getLocations(XMLBillCreation.
java:2618)
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ncss.billing.broadviewBill.xml.XMLBillCreation.createXMLBill(XMLBillCreation
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ncss.billing.ejb.billAdmin.session.BillAdminSessionEJB.getBillAsXml(BillAdmi
nSessionEJB.java:341)
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ncss.billing.ejb.billAdmin.session.BillAdminSession_uli3xb_EOImpl.getBillAsX
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at
ncss.billing.ejb.billAdmin.session.BillAdminSession_uli3xb_EOImpl_WLSkel.inv
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at
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ncss.billing.broadviewBill.xml.XMLBillCreation.getTopTenReport(XMLBillCreati
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ncss.billing.broadviewBill.xml.XMLBillCreation.getTopTenReports(XMLBillCreat
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at
ncss.billing.broadviewBill.xml.XMLBillCreation.getLocations(XMLBillCreation.
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at
ncss.billing.broadviewBill.xml.XMLBillCreation.createXMLBill(XMLBillCreation
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ncss.billing.ejb.billAdmin.session.BillAdminSession_uli3xb_EOImpl.getBillAsX
ml(BillAdminSession_uli3xb_EOIm.java:100)
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at
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at java.lang.String.equals(String.java:619)
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ncss.billing.broadviewBill.xml.XMLBillCreation.getTopTenReport(XMLBillCreati
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ncss.billing.broadviewBill.xml.XMLBillCreation.getTopTenReports(XMLBillCreat
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ncss.billing.broadviewBill.xml.XMLBillCreation.getLocations(XMLBillCreation.
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at
ncss.billing.ejb.billAdmin.session.BillAdminSessionEJB.getBillAsXml(BillAdmi
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at
ncss.billing.ejb.billAdmin.session.BillAdminSession_uli3xb_EOImpl_WLSkel.inv
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weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:477)
at
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t.java:363)
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weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
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weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:415)
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at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
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Line#
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njb7ty wrote:
I suggest dropping that example program and concentrating on reading a book on Java such as 'Head First in Java'. Otherwise, you will spend a lot of time trying to get something to work and gain little value from it.Likewise... Jumping into reflections before you can [read a stack-trace|http://www.0xcafefeed.com/2004/06/of-thread-dumps-and-stack-traces/] is like signing up a toddler for the New York Marathon... it's probably simply beyond your skill level... so step back... go read a book, do some tutorials, get your head around just the process of the designing, writing, compiling, running, and debugging java programs... and what the different diagnostics mean... Then, equipped with your nose-clip and your trusty stone ;-) you contemplate leaping into the deep end ;-)
Cheers. Keith.

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RGEO wrote:
hello, Can anybody explain me difference between equal method in String class and equal method in Object class. We have equal method in object classes. and object class is the super class of all classes, so why we need equal method in String class.Because "equal" means different things for different objects. For a String, "equal" would mean that both Strings being compared have the exact same characters, in the same sequence. For an Integer, "equals" would mean that both objects have the same integer value.

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Hi
Just wanted to know whether compareto and equals method performance for checking whether the two strings are equal or not .
Which one is good with respect to bytecode , speed performance.
Im not asking for the difference, only asking which one is good to use most number of times for comparing two strings for equilaty.
Thanks.

Hi
Ya they are both for different purposes. No doubt.
t which one is faster among the two for string
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compareto or equals.
thanksHis point is that it doesn't matter. You shouldn't worry about optimization for small details like this. Unless you are profiling your code and find a large slowdown with that code, then don't worry about their performance. Use the one that best suits your purpose. If you want to know if they're equal, use equals(), if you want to know their order, use compareTo().

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This has been stated NUMEROUS times throughout the forums...
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Hello, I am new in Java so please don't laugh at my question!!
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a Factory is atually very simple (100x simpler than reflection).
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Doubt in String Equals

Doubt in String Equals_
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kajbj wrote:
(You should really open a textbook and read about Strings, or google)fortunatly i know this :)
if you do
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Very simple XSLT string replacing question

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Thanks!

You should add a template for 'year' :<xsl:template match="year">
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I got some problem and it is very weird for me ...
For example:
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>>>
"if (sa.equals(s) ...){ // it actually return true // others matches ..startsWiths .....
however ...
when I call method: toCompare(s[0]);
in the method is actaully return false ...
I am passing the same value ..."
>>>
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On String Equality (using ==)

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Thanks!

== compares references for equality. When you want to compare two Object instances for equality you use the equals method. This applies not only to String but any other type of Object..

String Substitution Questions

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2. Are all the substitution parameters (#VALUE# strings) defined anywhere?
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Dave,
I'll do the best I can ...
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No.
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Only for &VALUE. strings for which you can define up to twenty name/value pairs in the Applicaiton Definition (Substitutions) section.
Scott

String equal?

I have some instrument which communicate with PC via RS232. So I use VISA write, read...
It's working OK, but have next problem
I want to compare two strings, one is constant other one will come out from VISA read. If I use indicator, it's show "hex"(for example 3E04 4B73 ) value from VISA, but if I use same wire to "equal?" to compare two strings it's return strange values...
Let's see all together to see what's my problem:
Rookie; LV 2011 on WIN 7
Solved!
Go to Solution.

I don't know the definition of "strange values", especially for a boolean that can only be false or true. Can you explain?
What is the display format of the diagram constant? (normal or hex?)
Once you have the right valuue in the indicator, you can right-click the terminal and "create constant". Now you have a diagram constant that is guaranteed to be identical to the current value of the indicator.
LabVIEW Champion . Do more with less code and in less time .

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