public class P23 {
    private String parentVariable = "Parent";

    public void parentMethod() {
        System.out.println("Parent method");
        Child child = new Child();
        child.childMethod();
    }

    public class Child {
        private String childVariable = "Child";

        public void childMethod() {
            System.out.println("Child method");
            System.out.println("Accessing parent variable: " + parentVariable);
            System.out.println("Accessing child variable: " + childVariable);
        }
    }

    public static void main(String[] args) {
        P23 parent = new P23();
        parent.parentMethod();
    }
}