class Feb12 {
	public static void main(String[] args) {

		System.out.println("start of main");

		// call sayHello in order to execute its code
		sayHello();
		
		System.out.println("after sayHello");

		sayHello();

		int age = getTen();
		System.out.printf("age: %d\n", age);

		String greeting = getGreeting();
		System.out.printf("%s\n", greeting);
		
		System.out.printf("%s\n", getGreeting());

		printInteger(67);

		int sum = computeSum(10,5);
		System.out.printf("sum: %d\n", sum);

		sum = computeSum(8,9);
		System.out.printf("sum: %d\n", sum);

	}

	public static void sayHello() {
		System.out.println("Hello!");
	}

	public static int getTen() {
		return 10;
	}

	public static String getGreeting() {
		return "Hello!";
	}

	public static void printInteger(int x) {
		System.out.printf("value of x: %d\n", x);
	}

	public static int computeSum(int a, int b) {
		return (a + b);
	}




}