public static void main(String[] args) {
	// write your code here
        Person person = new Person();
        System.out.println("Age is: " + person.age);
        person.adjustAge(person.age);
        System.out.println("Adjusted age is: " + person.age);

    }
    public static class Person{
        public int age = 20;
        public void adjustAge(int age){
            this.age = age + 20;
            System.out.println("Age in adjustAge() is: " +age);

        }
    }