MainApp

import java.util.Scanner;

public class MainApp {

    public static void findOddAndPrimeNumbers(int low, int high) {

        for (int i = low; i <= high; i++) {
            if (i % 2 != 0) {
                if (isPrime(i)) {
                    System.out.printf("%,d is both odd and prime.\n", i);
                } else {
                    System.out.printf("%,d is just an odd number.\n", i);
                }
            } else {
                System.out.printf("%,d is an even number.\n", i);
            }
        }
    }

    public static boolean isPrime(int entry) {
        if (entry % 2 == 0) {
            return false;
        } else {
            for (int j = 3; j*j <= entry; j += 2) {
                if (entry % j == 0) {
                    return false;
                }
            }
        }
        return true;
    }

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int lowerLimit;
        int upperLimit;

        do {
            System.out.print("\nEnter a lower limit of range: ");
            lowerLimit = Integer.parseInt(sc.next());

            System.out.print("Enter a higher limit of range: ");
            upperLimit = Integer.parseInt(sc.next());
        } while (lowerLimit >= upperLimit);

        findOddAndPrimeNumbers(lowerLimit, upperLimit);
    }
}