Question

I have some java classes that work fine until I put them in a package (which they really should be in) and I can’t work out why.

Class Board

import javax.swing.JPanel;

public class Board extends JPanel {
    public Board() {
    }

    public static void main(String[] args) {
    }
}

Class Skeleton

import javax.swing.JFrame;

public class Skeleton extends JFrame {

    public Skeleton() {
        add(new Board());
        setTitle("Skeleton");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(300, 280);
        setLocationRelativeTo(null);
        setVisible(true);
        setResizable(false);
    }
    public static void main(String[] args) {
        new Skeleton();
    }
}

And all this works fine until I put

package skeleton;

at the top of each one.

upon doing so I get

skeleton.java:9: error: cannot find symbol
        add(new Board());
                ^
  symbol:   class Board
  location: class Skeleton
1 error
Error: Could not find or load main class skeleton.Skeleton

Its probably something simple that i have overlooked but I can’t seem to find out what is wrong with it.

Edit

Both the classes are in a file called skeleton and skeleton is always spelled correctly.

Im am running javac on both Board.java and Skeleton.java and java on skeleton.Skeleton

EDIT 2

I fixed the

skeleton.java:9: error: cannot find symbol
            add(new Board());
                    ^
      symbol:   class Board
      location: class Skeleton

error, I forgot I was passing each file to javac individually, but the

Error: Could not find or load main class skeleton.Skeleton

still persists.

Answer 1

I recreated your code in my machine and it works fine.

Named them as Board.java and Skeleton.java

~$ cd skeleton
~/skeleton$ ls
Board.java  Skeleton.java
~$ cd ..
~$ javac skeleton/*.java
~$ ls skeleton
Board.class  Board.java  Skeleton.class  Skeleton.java
~$ java skeleton.Skeleton

Output came flashing on my screen!!

I tired this way too.

~$ cat arglist
skeleton/Board.java
skeleton/Skeleton.java
~$ javac @arglist
~$ java skeleton.Skeleton 

That too works.