Main class not found,even though its there

Question

package p1;

class a {
    public static void main(String[] argument) {
        //nothing
    }
}

And when I type java p1.a in command prompt, it always say Main class not found? Why so?

Can any one help me out? Why this is happening? Is the syntax correct?

it was on the desktop,and i complied after changing the directory to the folder,and then java p1.a — user3380123, Jul 03 '14 at 13:27
If it is desktop first open the cmd in desktop then compile it by javac p1/a.java and run it by java p1.a remember dont go inside the folder p1 and try the commands — SparkOn, Jul 03 '14 at 13:29
You actually don't specify the package name. See this link for more details. [http://www.oracle.com/technetwork/java/compile-136656.html#comp] — dARKpRINCE, Jul 03 '14 at 13:29
@Jonk it doesnot matter as long as the file contains only one class — SparkOn, Jul 03 '14 at 13:33
@M.Sharma Yeah, as I mentioned I was off to read the JLS to find out for certain, and you're right. — JonK, Jul 03 '14 at 13:35

score 1 · Answer 1 · answered Jul 03 '14 at 13:26

1

you need to do javac first.. javac generates a .class file. And try using the full (absolute) path when using java command.

answered Jul 03 '14 at 13:26

TheLostMind

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score 1 · Answer 2 · edited May 23 '17 at 11:49

1

Read this

When you create a package, you have to compile the package with -d option in javac. Then try executing the main class.

edited May 23 '17 at 11:49

Community

1
1

answered Jul 03 '14 at 13:30

user3717646

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score 1 · Answer 3 · answered Jul 03 '14 at 13:31

1

First as there is a package p1; you need to create the folder p1 and put the file inside it then as you said if you folder p1 is in desktop, then open the cmd in desktop then compile it by javac p1/a.java and run it by java p1.a

answered Jul 03 '14 at 13:31

SparkOn

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Main class not found,even though its there

3 Answers3