FinishedTheBasics

LearnTheBasics/7_Conditions.py

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+x = 2
+print(x == 2) # prints out True
+print(x == 3) # prints out False
+print(x < 3) # prints out True
+
+
+#The "and" and "or" boolean operators allow building complex boolean expressions, for example:
+name = "John"
+age = 23
+if name == "John" and age == 23:
+    print("Your name is John, and you are also 23 years old.")
+
+if name == "John" or name == "Rick":
+    print("Your name is either John or Rick.")
+
+
+#The "in" operator could be used to check if a specified object exists within an iterable object container, such as a list:
+name = "John"
+if name in ["John", "Rick"]:
+    print("Your name is either John or Rick.")
+
+
+#Here is an example for using Python's "if" statement using code blocks:
+statement = False
+another_statement = True
+if statement is True:
+    # do something
+    pass
+elif another_statement is True: # else if
+    # do something else
+    pass
+else:
+    # do another thing
+    pass
+
+x = 2
+if x == 2:
+    print("x equals two!")
+else:
+    print("x does not equal to two.")
+
+
+#Unlike the double equals operator "==", the "is" operator does not match the values of the variables, but the instances themselves. For example:
+x = [1,2,3]
+y = [1,2,3]
+print(x == y) # Prints out True
+print(x is y) # Prints out False
+
+#Using "not" before a boolean expression inverts it:
+print(not False) # Prints out True
+print((not False) == (False)) # Prints out False
+
+# Exercise
+# Change the variables in the first section, so that each if statement resolves as True.
+
+# change this code
+number = 16
+second_number = False
+first_array = [True, True, True]
+second_array = [True,2]
+
+if number > 15:
+    print("1")
+
+if first_array:
+    print("2")
+
+if len(second_array) == 2:
+    print("3")
+
+if len(first_array) + len(second_array) == 5:
+    print("4")
+
+if first_array and first_array[0] == 1:
+    print("5")
+
+if not second_number:
+    print("6")