How can I get input from terminal in a container?

I want to run an interactive Java program in docker and need input from a terminal. How do I do this? The Java code is here:
```java
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine(); 
        System.out.println(input); 
    }
}
```