Queues_Tehut_Getahun_Calculator

Queues _Calculator_Tehut.rb

@@ -0,0 +1,111 @@
+
+puts "
+▄▄·  ▄▄▄· ▄▄▌   ▄▄· ▄• ▄▌▄▄▌   ▄▄▄· ▄▄▄▄▄      ▄▄▄  
+▐█ ▌▪▐█ ▀█ ██•  ▐█ ▌▪█▪██▌██•  ▐█ ▀█ •██  ▪     ▀▄ █·
+██ ▄▄▄█▀▀█ ██▪  ██ ▄▄█▌▐█▌██▪  ▄█▀▀█  ▐█.▪ ▄█▀▄ ▐▀▀▄
+▐███▌▐█ ▪▐▌▐█▌▐▌▐███▌▐█▄█▌▐█▌▐▌▐█ ▪▐▌ ▐█▌·▐█▌.▐▌▐█•█▌
+·▀▀▀  ▀  ▀ .▀▀▀ ·▀▀▀  ▀▀▀ .▀▀▀  ▀  ▀  ▀▀▀  ▀█▄▀▪.▀  ▀
+"
+#define methods
+def add(number1, number2)
+  solution = number1.to_f + number2.to_f
+  return solution
+end
+
+def subtract(number1, number2)
+  solution = number1.to_f - number2.to_f
+  return solution
+end
+
+def multiply(number1, number2)
+  solution = number1.to_f * number2.to_f
+  return solution
+end
+
+def divide(number1, number2)
+  solution = number1.to_f / number2.to_f
+  return solution
+end
+
+#retrieve user input and validate operation
+have_operation = false
+until have_operation
+  puts "Would you like to add, subtract, multiply, or divide?"
+  operation = gets.chomp.downcase
+
+  #validate operation
+  method = ""
+  if
+    operation == "add" || operation == "addition" || operation == "+"
+    method = "add"
+    have_operation = true
+  elsif
+    operation == "subtract" || operation == "subtraction"  || operation == "-"
+    method = "subtract"
+    have_operation = true
+  elsif
+    operation == "multiply" || operation == "multiplication" || operation == "*"
+    operation == "x"
+    method = "multiply"
+    have_operation = true
+  elsif
+    operation == "divide" || operation == "division" ||
+    operation == "/" || operation == "÷"
+    method = "divide"
+    have_operation = true
+  else
+    have_operation = false
+    puts "hmm that's not right, lets try that again."
+  end
+end
+
+#retrieve user input and validate values
+tested_num_1 = ""
+tested_num_2 = ""
+have_values = false
+
+while !have_values
+  print "First number:"
+  num_1 = gets.chomp
+  tested_num_1 = num_1.match(/\d(?![a-zA-Z])/)
+
+  print  "Second Number:"
+  num_2 = gets.chomp
+  tested_num_2 = num_2.match(/\d(?![a-zA-Z])/)
+
+  if tested_num_1 && tested_num_2 &&
+    method == "add" || method == "subtract" || method == "multiply" || method == "divide"
+    num_1 = tested_num_1.to_s.to_f
+    num_2 = tested_num_2.to_s.to_f
+    have_values = true
+    if method == "divide" && num_2 == 0
+      have_values = false
+      puts "You cannot divide by 0. Please enter your numbers again\n"
+    elsif method == "divide" && num_2 !=0
+      num_1 = tested_num_1.to_s
+      num_2 = tested_num_2.to_s
+      have_values = true
+    end
+
+  elsif !tested_num_1
+    print "Your first entry must be a number. Enter both  values again.\n"
+  elsif !tested_num_2
+    print "Your second entry must be a number.Enter both values again.\n"
+    have_values = false
+  end
+end
+
+
+
+
+#do the math
+puts "Hrmmmm, let me think"
+if method == "add"
+  puts "The answer is: #{add(num_1, num_2)}"
+elsif method == "subtract"
+  puts "The answer is: #{subtract(num_1, num_2)}"
+elsif method == "multiply"
+  puts "The answer is: #{multiply(num_1, num_2)}"
+elsif method == "divide"
+  puts "The answer is: #{divide(num_1, num_2)}"
+end