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  Eclipse Compiling Problem  (Read 1487 times)
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Offline Grobinson

Senior Newbie





« Posted 2012-03-25 19:57:40 »

I'm new to the world of java and have been following a few online tutorials to get started. Everything was going great and the programs were compiling perfectly and then all of a sudden, without me seemingly changing anything, as far as preferences directly attributing to Eclipse, it stopped compiling any code at all. Even the simple Hello World code will not compile. All I get in the console line for any code is:

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Usage: javaw [-options] class [args...]
       (to execute a class)
or  javaw [-options] -jar jarfile [args...]
       (to execute a jar file)
where options include:
-d32      use a 32-bit data model if available
-d64      use a 64-bit data model if available
-server   to select the "server" VM
-hotspot      is a synonym for the "server" VM  [deprecated]
              The default VM is server.

-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 | -no-jre-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 with specified granularity
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
              disable assertions with specified granularity
-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
See http://www.oracle.com/technetwork/java/javase/documentation/index.html for more details.


I was able to compile the following code through javac in the command prompt but, all I get is the above for trying to compile while using Eclipse.
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public class apples {
   public static void main(String arg[]){
      System.out.print("Hello World");
   }
}


I'm not exactly sure of why it started this after being able to compile other code successfully. How do I go about in fixing the compiler so I can continue to learn?

EDIT: After doing more research into the subject, and a small amount of tinkering of my own, I have found that Eclipse was not pointing to any run time environments or lib files. Sorry for any trouble I may have caused.
Offline loom_weaver

JGO Coder


Medals: 17



« Reply #1 - Posted 2012-03-25 23:08:25 »

Glad you got it fixed!
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