Difficulty to run a java program

Question

I'm having troubles running the helloworldapp java program everytime i use the cmd.Here is the original execution of the program.

C:\Users\char>cd\

C:\>cd program files

C:\Program Files>cd java

C:\Program Files\Java>cd helloworldapp

C:\Program Files\Java\HelloWorldApp>path=c:\\program files\java\jdk1.7.0_11\bin

C:\Program Files\Java\HelloWorldApp>javac helloworldapp
error: Class names, 'helloworldapp', are only accepted if annotation processing
is explicitly requested
1 error

C:\Program Files\Java\HelloWorldApp> >>

And everytime I try to correct the class name it is saying the same thing. Can you help me with this problem?

You should refer to some tutorial or book as this question doesn't require any kind of RND to be done. How to get started guide would have definitely helped you out. — CuriousMind, Mar 02 '13 at 08:29

score 0 · Answer 1 · answered Mar 02 '13 at 08:15

Compile it like this:

C:\Program Files\Java\HelloWorldApp>javac helloworldapp.java

Source : http://docs.oracle.com/javase/tutorial/getStarted/problems/index.html

If you receive this error, you forgot to include the .java suffix when compiling the program. Remember, the command is javac HelloWorldApp.java not javac HelloWorldApp.

score 0 · Answer 2 · answered Mar 02 '13 at 08:16

0

Use:

C:\Program Files\Java\HelloWorldApp>javac helloworldapp.java

Instead:

C:\Program Files\Java\HelloWorldApp>javac helloworldapp

Reference : Lesson: Common Problems (and Their Solutions)

answered Mar 02 '13 at 08:16

Iswanto San

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score 0 · Answer 3 · answered Mar 02 '13 at 08:22

The error is due to the fact the you haven't specified the .java file-extension.

Correct usage:

C:\Program Files\Java\HelloWorldApp>javac helloworldapp.java

The .class file will now be generated. To run it, use (without the extension this time):

C:\Program Files\Java\HelloWorldApp>java helloworldapp

Using the .class extension here will again cause you problems.

The following usage is incorrect:

C:\Program Files\Java\HelloWorldApp>java helloworldapp.class

Difficulty to run a java program

3 Answers3