// Helene Martin, CSE 142
// Demonstration of basic array usage

import java.util.*;

public class ArrayDemo {
	public static void main(String[] args) {
		// use the jGRASP debugger to see what these arrays look like
		int[] values = new int[4];
		boolean[] wins = new boolean[67];
		String[] names = new String[450];
		values[0] = 5;
		values[1] = 2;
		values[3] = 6 % 4 + 156;
		// values[1] is an int so can itself be used as an index
		values[values[1]] = 15;
		
		System.out.println(Arrays.toString(values));
		int[] a = {5, 2, 15, 158};
		// bad (compares memory locations) System.out.println(values == a);
		System.out.println(Arrays.equals(values, a));
		
		// array traversal:
		// loop over each index of the array 
		for (int i = 0; i < values.length; i++) {
			// do something cool with values[i]
			System.out.println(values[i]);
		}
		
		// draw out the array and be sure to update values as they change
		mystery();
	}
	
	public static void mystery() {
		int[] a = {1, 7, 5, 6, 4, 14, 11};
		for (int i = 0; i < a.length - 1; i++) {
    		if (a[i] > a[i + 1]) {
        		a[i + 1] = a[i + 1] * 2;
    		}
		}
		// bad! (prints out memory location) System.out.println(a);
		String aStr = Arrays.toString(a);
		System.out.println(aStr);
	}
}