This is a common made error. If you write your code in a package the terminal could give some problems when compiling and running, because as it says: The terminal “could not find or load main class“. It lost track because of the added package. When it is necessary to use a package it is necessary to compile and run like this:

Steps:

expecting you already know how to compile, otherwise first check this page.

1. You could overwrite the file but for simplicity I delete the C.class file:As we show, indeed deleted the C.class file.
   
2. Because you are working with a package it is necessary to specify the directory of the class in order to make it accessible for your terminal:because you were working with packages you have to compile the package directory and specify with “-d .” the class.
3. As shown with ls the package P is indeed compiled.
4. To run the code it is necessary to start with: command “java“, package name, dot and the class name. Gives: java P.C
   in this case is the:
   1. package name: P
   2. class name: C
5. Check the code runs successfully, because the code was only a print statement with “hoi”:
   package P; 
   
   public class C {
   
   	C () {
   		
   	}
   	
   	void start () {
   		System.out.println("hoi");
   	}
   	
   	public static void main(String[] args) {
   		new C().start();
   	}
   }