import java.util.ArrayList;

public class ArraysEx {

public static void main(String[] args) {

// 1D ArraysEx

int[] a = {1, 2, 3, 4, 5};

int[] b = new int[5];

int[] c= new int[]{1, 2, 3, 4, 5};

// Assigning explicitly

b[0] = 1;

b[1] = 2;

// 2D ArraysEx

int[][] g = new int[][]{{1, 2, 3}, {4, 5, 6}};

// Accessing Elements

System.out.println(a[0]);

// Updating

System.out.println(a[4]);

a[4] = 10;

System.out.println(a[4]);

// Array List

ArrayList<String> stringArrayList = new ArrayList<>(java.util.Arrays.asList("1", "2", "3"));

ArrayList<String> stringArrayList2 = new ArrayList<>();

stringArrayList2.add("cookie");

stringArrayList2.add("biscuit");

stringArrayList2.add("jam");

System.out.println(stringArrayList2);

System.out.println(a);

System.out.println(stringArrayList2.get(0));

System.out.println(stringArrayList2.add("peanut butter"));

System.out.println(stringArrayList2.contains("cookie"));

}

}