GenerateStream.java

import java.util.stream.*;
import java.util.function.*;
import java.security.SecureRandom;
import java.math.BigInteger;

class Person {
    final String name;
    Person(String name) { this.name = name;}
    public String toString() { return this.name;}
}

class RandomPeople {
    private String generateRandomString(){
        return new BigInteger(130, new SecureRandom()).toString(10);
    }
    
    Stream<Person> getPeople() {
        return Stream.generate(new Supplier<Person>(){
            long n = 0;
            public Person get() { 
                return new Person("person_" + n++ + "-" + generateRandomString());
            }
        });
    }
}

public class Main {
    public static void main(String[] args) {
        Stream<Person> stream = new RandomPeople().getPeople();
        stream.limit(10).forEach(System.out::println);
    }
}