a short code for selecting (sth) randomly from a list in java!

lottery code

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.List;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
import java.util.Collections;
import java.util.Scanner;

public class randomEmail {
    public static void main(String[] args) {
        try {
            Scanner scan = new Scanner(System.in);
            System.out.print("Enter path: ");
            String path = scan.nextLine();
        
            BufferedReader br = new BufferedReader(new FileReader(path));
            String line;
            List < String > list = new ArrayList < String > ();
            while ((line = br.readLine()) != null) {
                list.add(line);
            }
            br.close();
            String[] listArr = list.toArray(new String[0]);

            ArrayList < Integer > numberList = new ArrayList < Integer > ();
            for (int i = 0; i < listArr.length; i++) {
                numberList.add(i);
            }
            Collections.shuffle(numberList);

            System.out.print("Enter number: ");
            int num = scan.nextInt();

            if (num > listArr.length) {
                System.out.println("Number is more than list length, try again :)");
                return;
            } else if (num < 1) {
                System.out.println("Error number, try again :)");
                return;
            }

            for (int i = 0; i < num; i++) {
                String thisRoundStr = listArr[numberList.get(i)];
                System.out.print((i + 1) + ". ");
                for (int j = 0; j < thisRoundStr.length(); j++) {
                    System.out.print(thisRoundStr.charAt(j));
                    TimeUnit.MILLISECONDS.sleep(50);
                }
                System.out.print("\n");
            }

            System.out.println("Done!");

        } catch (Exception e) {
            System.out.println("Error!");
        }
    }
}

sampleList.txt

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]