How do I run a Java class in a package?

Question

I have two java classes as follows

App1 without a package:

class App1 {
    public static void main(String[] args) {
        System.out.         


        

Answer 1

App2 needs to be in the java/java/package1 directory. In java, the package name and the directory for the source code must match. Did you not get a compilation error?