Scanner sc = new Scanner(System.in);
		System.out.println("What kind of processing task would you like to perform?");
		System.out.println("1: Generate an arithmetic sequence.");
		System.out.println("2: Generate an geometric sequence.");
		System.out.println("3: Determine an arithmetic sequence.");
		choice = sc.nextInt();

		while (anotherSequence.equals("Y")) {

			// Error prompt
			while (choice <= 0 || choice > 3) {
				System.out.println("Error: task number must be 1, 2, or 3.");
				System.out.println("What kind of processing task would you like to perform?");
				System.out.println("1: Generate an arithmetic sequence.");
				System.out.println("2: Generate an geometric sequence.");
				System.out.println("3: Determine an arithmetic sequence.");
				choice = sc.nextInt();
			}

			if (choice == 1) {
				System.out.println("Enter the first term in the arithmetic sequence: ");
				firstTerm = sc.nextInt();
				System.out.println("Enter the common difference in the arithmetic sequence: ");
				commonDifference = sc.nextInt();
				System.out.println("Enter the number of terms in the arithmetic sequence: ");
				numberOfTerms = sc.nextInt();
				int[] aSequence = new int[numberOfTerms];
				String delString = ", ";
				String newString = null;
				System.out.print("<");
				for (int i = 0; i < numberOfTerms; i++) {
					aSequence[i] = firstTerm;
					firstTerm = firstTerm + commonDifference;
					gResult = aSequence[i] + ", ";
					System.out.print(gResult);
					aSum = aSum + aSequence[i];

					if (i == numberOfTerms) {
						newString = gResult.replace(delString, "");
						System.out.println(">");
					}
				}
				// System.out.println(">");
				System.out.println("Sum of the arithmetic sequence: " + aSum);
			}

			if (choice == 2) {
				System.out.println("Enter the first term in the geometric sequence: ");
				firstTerm = sc.nextInt();
				System.out.println("Enter the common ratio in the geometric sequence: ");
				commonRatio = sc.nextInt();
				System.out.println("Enter the number of terms in the geometric sequence: ");
				numberOfTerms = sc.nextInt();
				int[] gSequence = new int[numberOfTerms];
				for (int i = 0; i < numberOfTerms; i++) {
					gSequence[i] = firstTerm;
					firstTerm = firstTerm * commonRatio;
					System.out.println(gSequence[i] + ", ");
					gSum = gSum + gSequence[i];
				}
				System.out.println("Sum of the geometric sequence" + gSum);
			}



			System.out.println("Bye!");
		}