Write a menu-driven program to perform the following (using a switch-case statement):

Java Programming Language (Article) (Program)

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Write a menu-driven program to perform the following (Use switch-case statement):

1. To print the series 0, 3, 8, 15, 24 ... n terms (value of n is to be an input by the user).
2. To find the sum of the series given below:
   S = 1/2 + 3/4 + 5/6 + 7/8 ... 19/20

Program:

import java.io.*;

public class Menu {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int choice, n;
        double s = 0;

        System.out.println("Enter 1. To Print the Series");
        System.out.println("Enter 2. To Print the Sum of Series");
        System.out.println("Enter Your Choice");

        choice = Integer.parseInt(br.readLine());

        switch (choice) {
            case 1:
                System.out.println("Enter the number of terms:");
                n = Integer.parseInt(br.readLine());
                System.out.print("Series: ");
                for (int i = 1; i <= n; i++) {
                    int term = i * i - 1;
                    System.out.print(term + " ");
                }
                System.out.println();
                break;

            case 2:
                for (int i = 1; i <= 19; i += 2) {
                    s += (double) i / (i + 1);
                }
                System.out.println("Sum of series: " + s);
                break;

            default:
                System.out.println("Wrong Choice");
                break;
        }
    }
}

Output:

Explanation:

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