안녕하세요.
Jcreator를 깔아서 집에서 자바 연습하고 싶어요.
우선 JACA를 받아서 깔고
Jcretor를 받아서 깔고 열었는데 (그냥next next하고 모르는 건 무시하면서 깔았어요)
코드 쓰고 실행하려고 하니까 JDK 어쩌구 하더라구요
그래서 인터넷에서 찾아서 JDK라는 거 받아서 깔았죠.
그리고 맨 처음 설정 중에 폴더 지정해주는 곳 있잖아요. 
거기서 하나는 JDK폴더 있는 곳,
그 다음에는 자바 있는 곳을 지정하라고 해서 그렇게 했는데

다 끝나고 코드 입력 후에 실행하니깐 

--------------------Configuration: <Default>--------------------
Usage: java [-options] class [args...]
           (to execute a class)
   or  java [-options] -jar jarfile [args...]
           (to execute a jar file)

where options include:
    -client   to select the "client" VM
    -server   to select the "server" VM
    -hotspot   is a synonym for the "client" VM  [deprecated]
                  The default VM is client.
                  
    -cp <class search path of directories and zip/jar files>
    -classpath <class search path of directories and zip/jar files>
                  A ; separated list of directories, JAR archives,
                  and ZIP archives to search for class files.
    -D<name>=<value>
                  set a system property
    -verbose[:class|gc|jni]
                  enable verbose output
    -version      print product version and exit
    -version:<value>
                  require the specified version to run
    -showversion  print product version and continue
    -jre-restrict-search | -jre-no-restrict-search
                  include/exclude user private JREs in the version search
    -? -help      print this help message
    -X            print help on non-standard options
    -ea[:<packagename>...|:<classname>]
    -enableassertions[:<packagename>...|:<classname>]
                  enable assertions
    -da[:<packagename>...|:<classname>]
    -disableassertions[:<packagename>...|:<classname>]
                  disable assertions
    -esa | -enablesystemassertions
                  enable system assertions
    -dsa | -disablesystemassertions
                  disable system assertions
    -agentlib:<libname>[=<options>]
                  load native agent library <libname>, e.g. -agentlib:hprof
                    see also, -agentlib:jdwp=help and -agentlib:hprof=help
    -agentpath:<pathname>[=<options>]
                  load native agent library by full pathname
    -javaagent:<jarpath>[=<options>]
                  load Java programming language agent, see java.lang.instrument
    -splash:<imagepath>
                  show splash screen with specified image

Process completed.



이렇게 뜨네요. 설치가 잘 못 된 거 같은데.. 도와주세요.