import java.util.Scanner;

class Exam2 {
	public static void main(String[] args) {
		// problem 1
		Scanner kb = new Scanner(System.in);

		// problem 2
		int[] arr1 = {2,4,6,8,10};

		// problem 3
		arr1[1] = 7;

		// problem 4	
		String[] arr2 = new String[100];

		// problem 5
		System.out.println("Please enter a string");
		int lastIndex = arr2.length - 1;
		arr2[lastIndex] = kb.nextLine();

		// problem 6
		boolean isHello = (arr2[lastIndex].equals("hello")) ? true : false;

		// problem 7
		int[] arr3 = new int[100];
		for(int i = 0; i < arr3.length; i++) {
			arr3[i] = i + 1;
		}

		// problem 8
		int[] arr4 = new int[100];
		for(int i = 0; i < arr4.length; i++) {
			arr4[i] = 7 * i;
		}

		// problem 9
		int sum = 0;
		for(int elm : arr4) {
			sum += elm;
		}	

		// problem 10	
		for(int i = 0; i < arr3.length; i++) {
			arr3[i] = arr4[i];
		}
	
		// problem 11	
		int maxValue = max(arr4);
	}

	// problem 12
	static int max(int[] arr) {
		int max = arr[0];

		for(int elm : arr) {
			if (elm > max) {
				max = elm;
			}
		}
		return max;
	} 
}