CODEWITHSUNDEEP
javaeclipse
user2940619
user2940619

Reputation: 3

Program runs in Eclipse, doesn't run at command line

Hey I wrote a simple program in Eclipse:

package hw;

public class Assignment02Q01Sec01 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        if (args.length == 0) {
            System.out.println("No arguments!");
            return;
        }
        System.out.println(args[args.length - 1].charAt(args[args.length -1].length() - 1));
    }

}

It runs fine when selecting the 'Run' menu in Eclipse but fails when running from command line:

c:\Users\ghostcow\workspace\hw\bin\hw>java Assignment02Q01Sec01
Exception in thread "main" java.lang.NoClassDefFoundError: Assignment02Q01Sec01
(wrong name: hw/Assignment02Q01Sec01)
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

What am I doing wrong?

NOTE: I'm in my class path in cmd, and '.' is included in the CLASSPATH env variable, i checked.

EDIT: Thanks, problem solved.

Upvotes: 0

Views: 239

Answers (4)

Simon
Simon

Reputation: 113

Java program must be run with qualified name of the main class. In this situation, it should be "java hw.Assignment02Q01Sec01 directly outside directory hw(compiled class, not source code)

Upvotes: 0

Vivek Viswanathan
Vivek Viswanathan

Reputation: 1963

You have to run it as

java hw.Assignment02Q01Sec01

You have to provide the fully qualified class name and run from bin folder.

Upvotes: 0

Kayaman
Kayaman

Reputation: 73558

You need to run it from bin, not bin\hw as java hw.Assignment02Q01Sec01.

Upvotes: 1

Dawood ibn Kareem
Dawood ibn Kareem

Reputation: 79838

cd \Users\ghostcow\workspace\hw\bin\
java hw.Assignment02Q01Sec01

Upvotes: 2

Related Questions