Statistics are often calculated with varying amounts of input data. Write a program that takes any number of non$-$negative integers as input, and outputs the max and average. A negative integer ends the input and is not included in the statistics. Assume the input contains at least one non$-$negative integer.

Output the average with two digits after the decimal point followed by a newline, which can be achieved as follows:

System.out.printf$("\%\mathrm{.}2$f

$",$ average$)$;

Ex: When the input is:Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the

string. The output should include the input character and use the plural form, n$\text{'}$s$,$ if the number of times the characters appears is not

exactly $1.$

Ex: If the input is:

n Monday

the output is:

$1n$

Ex: If the input is:

z Today is Monday

the output is:

$0z^{\text{'}}s$

Ex: If the input is:

n It's a sunny day

the output is:

$2n^{\text{'}}s$

Case matters.

Ex: If the input is:

n Nobody

the output is: