// file Person.java

public class Person
{
   // constructor methods

   public Person()
   {
      name = "UNKNOWN";
      age = 0;
   }

   public Person(String n, int a)
   {
      name = n;
      age = a;
   }

   // instance methods

   public void setNameAndAge(String n, int a)
   {
      name = n;
      age = a;
   }

   public void setName(String name)
   {
      this.name = name;
   }

   public void setAge(int n)
   {
      age = n;
   }

   public void incrementAge()
   {
      age = age + 1;
   }

   public String getName()
   {
      return name;
   }

   public int getAge()
   {
      return age;
   }

   // instance variables/attributes

   private String name;
   private int age;

}// end class Person