class Arrays {

	public static void main(String[] args) {

		int[] arr = {1,2,3,4,5,6,7,8,9,10};  // declare and initialize array
		
		int len = arr.length;  // get length of array
		System.out.println("length of arr: " + len);
		System.out.println("elements of arr? " + arr);

		int elmAtIndex0 = arr[0];  // get value at index 0

		arr[0] = 7;  // change value of elm at index 0 to 7

		int[] arr2 = new int[1000];  // declare array of length 1000

		// print values in arr
		System.out.println(arr[0]);
		System.out.println(arr[1]);
		System.out.println(arr[2]);
		System.out.println(arr[3]);
		//...

		// a better way
		System.out.println("for-loop");
		for(int i = 0; i < arr.length; i++) {
			System.out.println(arr[i]);
		}


 
		
	}
}