Exercise 3 - Learn Ruby the Hard Way

gistfile1.rb

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "I will now count my chickens:"

# the puts method print the string that follows to the screen and returns the cursor to the next line.
# Using the operator presedence; first the division operator divides 30 by 6 then adds the integers and 
# prints them to the screen 
puts "Hens", 25 + 30 / 6

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
# Using the operator presedence; first the division operator divides 25 by 4 then subtracts and prints 
# the result to the screen
puts "Roosters" , 100 - 25 % 4

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "Now I will count the eggs:"

# the puts method prints the result of the equation. The equation is solved using operator presedence.
puts  3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 +6

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "Let's look at Boolean values..."

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "Is it true that 3 + 2 < 5 - 7?"

# the puts method prints the result of the equation as a boolean (true or false) and returns the cursor 
# to the next line.
puts 3 + 2 < 5 - 7

# the puts method prints the string to the screen, returns the cursor to the next line and prints the 
# result of the equation.
puts "What is 3 + 2?", 3 + 2

# the puts method prints the string to the screen, returns the cursor to the next line and prints the 
# result of the equation.
puts "What is 5 - 7?" , 5 - 7

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "Oh, that's why it's false."

# the puts method prints the string that follows to the screen and returns the cursor to the next line.
puts "How about some more?"

# the puts method prints the string that follows to the screen, returns the cursor to the next line 
# where the comparison operator makes it's deduction.
puts "Is it greater?" , 5.0 > -2.0

# the puts method prints the string that follows to the screen, returns the cursor to the next line where 
# the comparison operator makes it's deduction.
puts "Is it greater or equal?", 5 >= -2

# the puts method prints the string that follows to the screen, returns the cursor to the next line where 
# the comparison operator makes it's deduction.
puts "Is it less or equal?" , 5 <= -2

# the puts method prints the result of the division to the screen and returns the cursor to the next line
puts 38.0 / 6.0

# definitions...
puts "Addition - Adds values on either side of the operator"
puts "Subtraction - Subtracts right hand operand from the left hand operand"
puts "Multiplication - Multiplies values on either side of the operator"
puts "Division - Divides left hand operand by right hand operand"
puts "Modulus - Divides left hand operand by right hand operand and returns the remainder"
puts "Exponent - Performs exponential (power) calculation on operators"
puts "< <= > >= Comparison Operators"
puts "The assignment operator = assigns the result of an operation to a variable"