public class W09N03
{
	// variables
	private int[] ia;
	
	// constructor
	// @param len the length of the array
	public W09N03(int len)
	{
		// initialize the variable
		// create array object
		ia = new int[len];
		// give each element a value == to the index
		// of the element
		for (int i = 0; i < ia.length; i++)
		{
			ia[i] = i + 10;
		}
	}
	
	// Methods:
	// search for an int in an int array
	public int indexOf(int t)
	{
		// look through all elements
		for (int i = 0; i < ia.length; i++)
		{
			// if element == t
			if (ia[i] == t)
				// return index
				return i;
		}
		return -1;
	}

	// A Driver method in the same class being driven
	// A very common way to test the functionality of the classes you write
	public static void main(String[] args)
	{
		// declare a variable to hold a reference
		W09N03 w;
		// create a new object using this class
		// pass 4 to the constructor
		w = new W09N03(4);
		// search for a value by calling the indexOf method
		// notice this is NOT the indexOf method declared in the String class,
		// but it behaves in a similar manner
		int rslt = w.indexOf(13);   // should return 3
		rslt = w.indexOf(3);        // should return -1
	}
}