import java.util.Scanner;

public class eg01array
{
	public static void main(String[] args)
	{
		final int EMPLOYEES = 3;
		int[] hours; //Unlike some languages, never put the size of the array in the declaration, it only creates array reference var
		hours = new int[EMPLOYEES]; // Allocate/create an array, assign address to hours varialbe
		//int[] hours = new int[EMPLOYEES];  // Declare and allocate.
		
		Scanner keyboard = new Scanner(System.in);
		
		System.out.println("Enter the hours worked by " + EMPLOYEES + " employees.");
		System.out.print ("Employee 1: ");
		hours[0] = keyboard.nextInt();
		
		System.out.print ("Employee 2: ");
		hours[1] = keyboard.nextInt();
		
		System.out.print ("Employee 3: ");
		hours[2] = keyboard.nextInt();
		
		System.out.println("The hours you entered are: ");
		//System.out.println(hours[0]);
		//System.out.println(hours[1]);
		//System.out.println(hours[2]);
		for (int index = 0; index < EMPLOYEES; index++) {
			System.out.println(hours[index]);
		}
		
		int[] myhours = hours;   //pointing to the same memory address (reference), two variables reference the same array
		for (int index = 0; index < EMPLOYEES; index++) {
			System.out.println(myhours[index]);
		}
		
		System.out.println ("Demo same memory address (by reference)");
		hours[1] = 10;			//changing one changes both due to reference
		System.out.println(myhours[1]);
		
		//note: java performs array bounds check at runtime, not compile time
		
	}
}