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 ktoré prezentácie treba vedieť na prvý moodle test?

neviete niekto preco mi to pri vyhladavani hadze NullPointerException ?  konkretne nieco také :

Code [Select] Expand

java.lang.NullPointerException
        at at.ac.tuwien.infosys.rnue.implementation.security.SecurityHelperImpl.getPublicKeyFromCA(Unknown Source)
        at at.ac.tuwien.infosys.rnue.implementation.search.SearchEngineImpl.search(Unknown Source)
        at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
        at sun.rmi.transport.Transport$1.run(Transport.java:159)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
        at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
        at at.ac.tuwien.infosys.rnue.implementation.search.SearchEngineImpl_Stub.search(Unknown Source)
        at at.ac.tuwien.infosys.rnue.implementation.ShareMeImpl.search(Unknown Source)
        at at.ac.tuwien.infosys.rnue.helpers.search.SearchMain.main(SearchMain.java:82)
Generic Error!
java.lang.NullPointerException


momentalne to vyhodi ked sa snazi prejst tieto uzly :
rmi://147.232.40.99:7236/RMIBajsko
rmi://dslab:7506/FBI

je chyba u mna ?

Pozeram že maš to iste čo ja. Mne vypisuje presne to iste a neviem prist v com je chyba

neviete kde by to mohlo viaznut? toto mi vypise ak dam nieco hladat

Code [Select] Expand


ShareMe server started.
Enter search string (abort with 'bye <password>'): txt
Not Bound Exception! MattiasRMI
at.ac.tuwien.infosys.rnue.helpers.ShareMeException: Applicant is not verified!
        at at.ac.tuwien.infosys.rnue.implementation.search.SearchEngineImpl.search(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
        at sun.rmi.transport.Transport$1.run(Transport.java:159)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255)
        at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142)
        at at.ac.tuwien.infosys.rnue.implementation.search.SearchEngineImpl_Stub.search(Unknown Source)
        at at.ac.tuwien.infosys.rnue.implementation.ShareMeImpl.search(Unknown Source)
        at at.ac.tuwien.infosys.rnue.helpers.search.SearchMain.main(SearchMain.java:82)
Error!
at.ac.tuwien.infosys.rnue.helpers.ShareMeException: Applicant is not verified!
Search request for <txt> finished.


Nazdar ludia. Chcem sa opytat ci ma niekto bakalarku u pana Stanislava Subu?

ano napriklad ja

Ľudia ktorý odovzdávali v pondelok. Máte už zapísané výsledky v MAISe?

mam zopar otazok co sa tyka urcovania H (handles) a K keys
ak mam gramatiku napr. 

Expr -> Term{ "+" Term}
Term -> Term2 [ "-" Tem2]
Term2 -> value | "(" Expr ")"

tak potom urcenie mnoziny H je taketo??

H(Term2)={ VALUE , LPAR }
H(Term2)={ MINUS, VALUE , LPAR, }
H(Expr)={ PLUS, MINUS, VALUE , LPAR, }

a ako urcim K keys?

potom sa chcem spytat na K ak mam proceduru void Term(SetType K)......potom K predstavuje mnozinu klucov s ktorymi je volana procedura, ale co si mam pod tym predstavit ...co je vlastne mnozina aktualnych klucov.... a ako sa meni v jednotlivych procedurach

je toho v podstate dost ale z prednasky a poznamok som to velmi nepochopil.....odpoved by mi dost pomohla...dik

Chcem sa spytat ludi co maju cvicenia s Vaclavikom spominal nieco, ze mame v 3 zadani robit aj nejaky postfixny kod, kedze nic take som nezaregistroval a niektore druhe skupiny to vraj maju robit.. Ked ano tak sa chcem syptat ze co to ma ako robit.

moze mi niekto povedat co znamena ak mam pri oparatore / zadane "bez asociacie" ...viem že ked je asociacia do lava tak sa retazec napr. 2*4*5*2 vyhodnoti nejak takto (((2*4)*5)*2) pri asociacii do prava takto (2*(4*(5*2))).... no a ako sa ma vyhodnotit takyto retazec bez asociacie.... malo by to byt nejak bez tych zatvoriek ale ako?