Print multiple lines output in java without using a new line character

Question

this is one of the interview question. I am supposed to print multiple lines of output on command line, without using the newline(\\n) character in java. I trie

Answer 1

No loops, 1 println call, +flexibility:

public static void main (String[] args) {
    print(5);
}

final String newLine = System.getProperty("line.separator");
public void print(int fin) {
    System.out.println(printRec("",1,fin));
}
private String printRec(String s, int start, int fin) {
    if(start > fin)
        return s;
    s += start + newLine;
    return printRec(s, start+1, fin);
}