Using the switch case statement, write a menu driven program for the following:

(a) To input a number and display only those factors of the numbers which are prime.
Sample Input: 84
Sample Output: 2, 3, 7

(b) A program that displays the multiplication table from 1 to 10, as shown:
1 2 3 4 5 6 7 8 9 10
2 4 6 8 10 12 14 16 18 20
3 6 9 12 15 18 21 24 27 30
……………………………..
……………………………..
……………………………..
9 18 27 36 45 54 63 72 81 90
10 20 30 40 50 60 70 80 90 100

import java.util.Scanner;

public class KboatPrimeFactorsNTables
{
    public static void main(String args[])  {
        Scanner in = new Scanner(System.in);
        
        System.out.println("Enter 1 for prime factors");
        System.out.println("Enter 2 for multiplication tables");
        
        System.out.print("Enter your choice: ");
        int ch = in.nextInt();
        
        switch (ch) {
            case 1:
                System.out.print("Enter a number: ");
                int num = in.nextInt();
                
                for(int i = 2; i <= num/2; i++) {
                    int c = 0;
                    if(num % i == 0)    {
                        for (int j = 1; j <= i; j++)  {
                            if(i % j == 0)
                                c++;
                        }
                        if(c == 2)
                            System.out.print(i + " ");
                    }
                }
                break;
            
            case 2:
                for (int i = 1; i <= 10; i++)   {
                    for (int j = 1; j <= 10; j++)   
                        System.out.print((i * j) + " ");
                    System.out.println();
                }
                break;
            
            default:
                System.out.println("Incorrect Choice");
        }
    }
}