can't run the java file

[kulangotski]

hi, I was wondering what might be wrong with my java setup on my system

i can compile my java files with no errors and the class files corresponding the java file will appear.

problem comes when I try to do the java command

I am able to compile this with no errors using 'javac H.java' on the command line

public class H {
	public static void main (String[] args) {
		System.out.println('fubar");	
	}
}

but when I do 'java H' on the terminal it gives me this error message

Exception in thread "main" java.lang.NoClassDefFoundError: H
Caused by: java.lang.ClassNotFoundException: H
	at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: H. Program will exit.

should I need to declare stuff like system variables or anything that is necessary to setup first

thanks for reading, all suggestions would be appreciated :D

[kulangotski]

correction

System.out.println('fubar");

[JosAH]

correction

System.out.println('fubar");

That should be:

System.out.println("fubar");

Didn't your compiler complain when you compiled your code?

kind regards,

Jos

[kulangotski]

jeez,,

the correction was the same with the wrong code on the first post. Sorry, already fixed that.

[JosAH]

jeez,,

the correction was the same with the wrong code on the first post. Sorry, already fixed that.

So does your class run now?

kind regards,

Jos

[kulangotski]

still got the same problem with the class though, not seeing the compiled class

[JosAH]

still got the same problem with the class though, not seeing the compiled class

For the record: when you do:

javac H.java

Don't see see a file 'H.class' in the directory where (also) H.java is stored? Does your compiler complain about anything?

kind regards,

Jos

[kulangotski]

oh, when I run this using 'javac H.java'

//H.java

public class H {
	public static void main (String[] args) {
		System.out.println("fubar");	 //got the quotes right
	}
}

I get no complain, but when I do 'java H', i get this

Exception in thread "main" java.lang.NoClassDefFoundError: H
Caused by: java.lang.ClassNotFoundException: H
	at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: H. Program will exit.

[JosAH]

oh, when I run this using 'javac H.java'

//H.java

public class H {
	public static void main (String[] args) {
		System.out.println("fubar");	 //got the quotes right
	}
}

I get no complain, but when I do 'java H', i get this

Exception in thread "main" java.lang.NoClassDefFoundError: H
Caused by: java.lang.ClassNotFoundException: H
	at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: H. Program will exit.

When you do an 'ls' (or 'dir' depending on your OS) in the directory where your H.java file is stored, can you see an H.class file? Is that directory writable to you?

kind regards,

Jos