public class Driver
{
    public static void main(String [] args)
    {
	int num1 = 123;
	int num2 = 321;
	int [] array = new int[2];
	Person bob = new Person(13);
	ParameterExample pe = new ParameterExample();
	System.out.println(num1 + " " + bob.getAge());
	pe.method1(num1,bob);
	System.out.println(num1 + " " + bob.getAge());
	num1 = pe.method2(num1,bob);
	System.out.println(num1 + " " + bob.getAge());
	array[0] = num1;
	array[1] = num2;
	pe.method3(num1,num2,array);
	System.out.println(num1 + " " + num2 + " " + 
			   array[0] + " " + array[1]);
    }
}