packaging - Problems running java classfile from the folder -

-

i have 3 source files in folder. want compile them using commandline , execute them. however, i'm having following issue. on windows box:

code compiles fine:

c:\mycode\src\code>javac source1.java source2.java source3.java

does not run folder class files are:

c:\mycode\src\deckofcards>java source1 exception in thread "main" java.lang.noclassdeffounderror: source1 (wrong name: code/source1)         @ java.lang.classloader.defineclass1(native method)         @ java.lang.classloader.defineclasscond(unknown source)         @ java.lang.classloader.defineclass(unknown source)         @ java.security.secureclassloader.defineclass(unknown source)         @ java.net.urlclassloader.defineclass(unknown source)         @ java.net.urlclassloader.access$000(unknown source)         @ java.net.urlclassloader$1.run(unknown source)         @ java.security.accesscontroller.doprivileged(native method)         @ java.net.urlclassloader.findclass(unknown source)         @ java.lang.classloader.loadclass(unknown source)         @ sun.misc.launcher$appclassloader.loadclass(unknown source)         @ java.lang.classloader.loadclass(unknown source) not find main class: source1.  program exit.

however, run when moving parent folder:

c:\mycode\src\code>cd ..  c:\mycode\src>java code/source1 hello1 hello2 hello3... ...... ....

i want distribute source , i'm not sure whether on windows or unix box.

eventually want create executable jar file giving me error this.

problem here not running java files, runs fine. wanted understand following:

in order run java program need following steps:

  1. create java source files (*.java files)
  2. compile using javac binary class files (*.class files)
  3. run class files using java executable

we use package structure keep organize java files. in case simple application (and use package named "code"), in large production application need organize our code many packages.

while running class file, need give class file path (which includes package path). in case need execute java code/source1 run class.

you can learn more link: http://docs.oracle.com/javase/tutorial/getstarted/cupojava/win32.html

for creating jar file can refer link: http://docs.oracle.com/javase/tutorial/deployment/jar/build.html

for making jar file executable ensure add manifest file main-class attribute.


Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c++ - Using OpenSSL in a multi-threaded application -

-
i have been writing soap client application in c++ on ubuntu using openssl https transport , pthreads threading. have number of threads - 1 central data acquisition thread periodically gets worker threads make soap requests via shared mutex protected queues. reading documentation openssl found is openssl thread-safe? in openssl faq describes mechanisms required ensure thread safety when using openssl. implemented , works fine. the reason question conceptual difficulty really. thinking implementing same functionality application has already, instead of using threads, create 2 seperate applications : 1 worker thread (of multiple copies running) , main data acquisition thread. use tcp sockets communicate between 2 rather mutex protected queues. may bad idea not important - confusing me would have implement same functions required ensure openssl thread safety in second approach or not? my guess not have , treated independent (indeed surely must many applications use openssl) re...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more