Suppose we receive a form submitted by a post to subscribe to a newsletter. This form has only one field, an input text field named email. How would we validate whether the field is empty? Print a message "the email cannot be empty" in this case?
1133How to implement a class named dragonball. This class must have an attribute named ballcount (which starts from 0) and a method ifoundaball. When ifoundaball is called, ballcount is increased by one. If the value of ballcount is equal to seven, then the message you can ask your wish is printed, and ballcount is reset to 0. How would you implement this class?
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