Error with virtual tree program ruby - ruby-on-rails

Question

I have just started learning ruby and have made this program following a tutorial.
I keep getting an error when trying to run and can't find an answer.
The program is suppose to be able to pick fruit, count the fruit, give the height and grow.
C:\Sites\testfolder>ruby orangetree.rb
orangetree.rb:2:in `initialize': wrong number of arguments (1 for 0) (ArgumentEr
ror)
from orangetree.rb:51:in `new'
from orangetree.rb:51:in `<class:OrangeTree>'
from orangetree.rb:1:in `<main>'
C:\Sites\testfolder>
Here is the program
class OrangeTree
def initialize
#age = 0
#tall = 0
#fruit = 0
puts 'You have planted a new tree!'
def height
puts 'The tree is ' + #tall.to_s + 'foot tall.'
end
def pickAFruit
if #fruit <= 1
puts 'There is not enough fruit to pick this year.'
else
puts 'You pick an orange from the tree.'
#fruit = #fruit - 1
end
end
def countOranges
puts 'The tree has ' + #fruit.to_s + 'pieces of fruit'
end
def oneYearPasses
#age = #age + 1
#tall = #tall + 3
#fruit = 0
if dead?
puts 'The Orange Tree Dies'
exit
end
if #age > 2
#fruit = #age*10
else
#fruit = 0
end
end
private
def dead?
#age > 5
end
end
tree = OrangeTree.new 'tree'
command = ''
while command != 'exit'
puts 'please enter a command for the virual tree'
command = gets.chomp
if command == 'tree height'
tree.height
elsif command == 'pick fruit'
tree.pickAFruit
elsif command == 'wait'
tree.oneYearPasses
elsif command == 'count fruit'
tree.countOranges
elsif command == 'exit'
exit
else
puts 'Cant understand your command, try again'
end
end
end
Can anybody help?

Answer 1

You have some syntax errors. I have fixed them below. The syntax errors were:
You had an extra end on the last line (for closing the class declaration)
You were passing an argument to OrangeTree.new ("tree") that was unexpected. This is what the wrong number of arguments (1 for 0) error message in your question is referring to.
You were missing an end to close your initialize method declaration (after the puts 'You have planted a new tree!' line)
I have also fixed the indentation, which makes the code more readable and much easier to spot syntax errors like this.
class OrangeTree
def initialize
#age = 0
#tall = 0
#fruit = 0
puts 'You have planted a new tree!'
end
def height
puts 'The tree is ' + #tall.to_s + 'foot tall.'
end
def pickAFruit
if #fruit <= 1
puts 'There is not enough fruit to pick this year.'
else
puts 'You pick an orange from the tree.'
#fruit = #fruit - 1
end
end
def countOranges
puts 'The tree has ' + #fruit.to_s + 'pieces of fruit'
end
def oneYearPasses
#age = #age + 1
#tall = #tall + 3
#fruit = 0
if dead?
puts 'The Orange Tree Dies'
exit
end
if #age > 2
#fruit = #age*10
else
#fruit = 0
end
end
private
def dead?
#age > 5
end
end
tree = OrangeTree.new
command = ''
while command != 'exit'
puts 'please enter a command for the virual tree'
command = gets.chomp
if command == 'tree height'
tree.height
elsif command == 'pick fruit'
tree.pickAFruit
elsif command == 'wait'
tree.oneYearPasses
elsif command == 'count fruit'
tree.countOranges
elsif command == 'exit'
exit
else
puts 'Cant understand your command, try again'
end
end