$(1)$ Ask the user to enter $4$ numbers, being $4$ people's heights. Store the numbers in an array of doubles. Output the array's numbers on one line, each number followed by one space. $(2$ pts$)$

Ex:

Enter height $1$: $5\mathrm{.}4$ Enter height$2$: $6\mathrm{.}3$ Enter height$3$: $5\mathrm{.}7$ Enter height$4$: $6\mathrm{.}2$ You entered:$5\mathrm{.}46\mathrm{.}35\mathrm{.}76\mathrm{.}2$

$(2)$ Also output the total height, by summing the array's elements. $(1$ pt$)$

$(3)$ Also output the average of the array's elements. $(1$ pt$)$

$(4)$ Also output the max array element. $(2$ pts$)$

Ex:

Enter height$1$: $5\mathrm{.}4$ Enter height$2$: $6\mathrm{.}3$ Enter height$3$: $5\mathrm{.}7$ Enter height$4$: $6\mathrm{.}2$ You entered:$5\mathrm{.}46\mathrm{.}35\mathrm{.}76\mathrm{.}2$ Total height:$23\mathrm{.}6$ Average height:$5\mathrm{.}9$ Max height:$6\mathrm{.}3$