Imagine that the floor has safe spaces $($stone$)$ to step on and dangerous spaces $($lava$)$ that if you step on you could get hurt. But this floor is tricky as the safe and dangerous spaces switch $($stones become lava and lava becomes stone$).$ In this assignment, you will write a program that simulates a sequence of safe spaces $($stones$).$ Your task is to print:

all safe spaces $($even numbers$)$ in ascending order first. At this moment lava and stones $$switch$($stones become odd, lava become even$).$

then all safe spaces $($odd numbers now$)$ in decreasing order.

Task

We provide a zip file $($find it in Autolab$)$ that contains FloorIsLava.java.

UPDATE and SUBMIT the corresponding file.

Programming

Write a program, FloorIsLava.java, that reads $1$ integer argument from the command line.

Expect the input to be an integer value greater than or equals $0.$

If the input is $0,$ nothing is expected to be printed.

The program is expected to print all even numbers up to and including the input value $($if even$).$ Once all the even numbers have been printed, it prints all odd numbers in descending order $($starting with the input value$).$ Expected Output:

For :

$24687531$

For :

$24681012131197531$

For :

$($no output$)$ FloorIsLava $8$FloorIsLava $13$FloorIsLava $0$

Executing and Debugging

First navigate to FloorIsLava directory$/$folder

to compile: javac FloorIsLava.java

to execute: java FloorIsLava $[$any number$]$