ReadInput.java

package com.test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {

        System.out.print("Enter you choices: ");

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String result = reader.readLine();

        // Assume I input 1,2,3
        String[] choices = result.split(",");
        for (String choice : choices) {
            System.out.println(choice);
        }
    }
}