Java not working

[shortymc]

Hello
Thanks for your great works

First javac was not detected
after installing

gcj-6-jdk

i tried

---

public class HelloWorld {

public static void main(String[] args) {
    // Prints "Hello, World" to the terminal window.
    System.out.println("Hello, World");
}

}

---

and i got :
Main.java:1: error: The public type HelloWorld must be defined in its own file
public class HelloWorld {
^^^^^^^^^^
1 problem (1 error)

Compiled And Executed In: 0.00 s

Verdict : AC

---

Thanks for your help

Best Regards