## Chapter 8 ##

### Building and sorting an array
    puts 'insert item into array: '
    new_item_array = gets.chomp
    my_array = []

    while new_item_array != ''

      my_array.push new_item_array
      puts 'insert item into array: '
      new_item_array = gets.chomp

    end

    puts my_array.sort

### Table of contents, revisited

    title = 'Table of Contents'

    contents = [ ['Chapter 1:' , 'Getting Started', 'page 1'],
               ['Chapter 2:', 'Number', 'page 9'],
               ['Chapter 3:', 'Letters', 'page 13']]

    numItems = contents.length
    line_width = 20

    puts title.center(50)
    puts ''

    contents.each do |item|
      puts item[0].ljust(line_width) + item[1].ljust(line_width) + item[2].ljust(line_width)
    end