/*
 Class Person has data members and methods
*/
class Person
{
	//Nobody from outside the class
	//can access it directly. They are foced
	//to use the public method setAge()
	private int age ;
	public String firstName ;
	public String lastName ;

	public int getAge()
	 {
       return age ;
	 }

    public void setAge( int ageP )
      {
         if ( ageP < 0 && age <= 150 )
           age = ageP ;
         else
           System.out.println(
			   "Please Enter a valid value for age.") ;
	  }
}

public class Encapsulation2
{

    public static void main(String[] args)
    {
       Person personObject = new Person() ;
      //  Can't do. Compiler error.
      // personObject.age = 250 ;
       personObject.setAge( 250 ) ;
    }

}