@param item to be added

Is the deque empty? @return true if deque is empty, false otherwise

Removes and returns a random item @return a random item

@return the number of items on the deque

@return an iterator over items in order from front to back

Adds the item to the back of the deque

@return the number of items on the randomized queue

Removes and returns the item from the front @return the first item

Removes and returns the item from the back @return the last item

Adds the item to the front of the deque

@return true if the randomized queue is empty, false otherwise

Check if the site (row, col) is open @param row: the number of the site's row @param col: the number of the site's column @return: true if it is open

@return: the sample mean of percolation threshold

Opens the site (row, col) if it is not open already @param row: the number of the site's row @param col: the number of the site's column @throws Ille

Returns a random item (but do not remove it) @return a random item

@return: sample standard deviation of percolation threshold

@return an independent iterator over items in random order

@return: true if the system percolates, false otherwise.

@return: high endpoint of 95% confidence interval

@return: low endpoint of 95% confidence interval

Checks if the site (row, col) is full @param row: the number of the site's row @param col: the number of the site's column @return: true if it is ful

@return: the number of open sites in the system

Creates n-by-n grid, with all sites initially blocked @param n: the size of the system Throws: @throws IllegalArgumentException: if n <= 0

Performs independent trials on an n-by-n grid @param n: grid size (n-by-n) @param trials: number of trials @throws IllegalArgumentException: if n <=

Constructs an empty randomized queue

Runs x percolation trials for n-by-n grids @param args: grid size for each percolation and the total number of trials

unit testing (required) @param args

unit testing (required) @param args

Prints "Hello, World" @param args user inputs - not used

Prints greeting and goodbye to the two names @param args sequence of names

Reads a sequence of words from standard input and prints one of those words uniformly at random @param args sequence of words