Space - Stephanie

calculator.rb

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+def operator_check(operator)
+  case operator
+  when "1", "1.", "add", "+"
+    return "addition"
+  when "2", "2.", "subtract", "-", "delete"
+    return "subtraction"
+  when "3", "3.", "multiply", "*", "x", "times"
+    return "multiplication"
+  when "4", "4.", "divide", "/", "%"
+    return "division"
+  else 
+    puts "Please enter a valid selection"
+    operator = gets.chomp.downcase.to_s
+    operator_check(operator)
+  end
+end
+
+puts "Let's do some MATH!"
+
+puts "Please pick an operator:
+1. Add (+)
+2. Subtract(-)
+3. Multiply (*) 
+4. Divide (/)"
+
+operator = gets.chomp.downcase.to_s
+operator_n = operator_check(operator)
+
+
+## getting input 1
+puts "Please pick the first number"
+a = gets.chomp
+
+ ## checking for valid imput  
+if a.to_i.to_s != a.strip
+  puts "Please enter a valid number"
+else
+  a = a.to_i
+end
+
+## getting input 2
+puts "Please pick the second number"
+b = gets.chomp
+
+if b.to_i.to_s != b.strip
+  puts "Please enter a valid number"
+else
+  b = b.to_i
+end
+
+##calculator
+def calcluator(operator, a, b) 
+  if operator == "addition"
+    puts "Your answer is #{a + b}"
+  elsif operator == "subtraction"
+    puts "Your answer is #{a - b}"
+  elsif operator == "multiplication"
+    puts "Your answer is #{a * b}"
+  elsif operator == "division" && b != 0
+    puts "Your answer is #{a / b}"
+  elsif operator == "division" && b == 0
+    puts "Your answer is 0"
+  end 
+end
+
+calcluator(operator_n, a, b)
+
+