五、輸入 34 於下列 getBinary 遞迴程式，請問回傳值為何？（20 分） /** getBinary returns a String representation of the binary * equivalent of a specified integer n. * The worstTime(n) is O(log n).* * @param n – an int in decimal notation. * @return the binary equivalent of n, as a String * @throws IllegalArgumentException, if n is less than 0 */ public static String getBinary (int n) { if (n < 0) throw new IllegalArgumentException( ); if (n