import java.util.Scanner;

class Oct3 {
	public static void main(String[] args) {
		Scanner kb = new Scanner(System.in);


		System.out.print("Enter option [a,d,u,q (quit)]: ");

		String input = kb.next();
		char option = input.charAt(0);
/*
		if (option == 'a') {
			System.out.println("doing add operation...");
		}
		else if (option == 'd') {
			System.out.println("doing delete operation...");
		} 
		else if (option == 'u') {
			System.out.println("doing update operation...");
		} 
		else if (option == 'q') {
			System.out.println("quitting program...");
			return;
		} 
		else {
			System.out.println("Invalid option");
		}
*/	
		// same function - different code	

		switch(option) {
			case 'a':
				System.out.println("doing add operation...");
				break;

			case 'd':
				System.out.println("doing delete operation...");
				break;

			case 'u':
				System.out.println("doing update operation...");
				break;

			case 'q':
				System.out.println("quitting program...");
				return;

			default:
				System.out.println("Invalid option");
		}

		// swtich on Strings

		System.out.print("Enter string (add, ...): ");
		input = kb.next();

		switch(input) {
			case "add":
				System.out.println("doing add operation...");
				break;
		
		}

		// switch on int

		System.out.print("Enter integer (1, ...): ");
		int value = kb.nextInt();

		switch(value) {
			case 1:
				System.out.println("Doing op for input 1...");
				break;

		}

	}

}