1. Discuss why it is so important for all application builders to always check data received from unknown sources, such as Web a

Answer:

Coins c1 = new Coins (4, 3, 2, 1);

c1.bankValue();

c1.addQuarter();

c1.addQuarter();

c1.addDime();

c1.addDime();

c1.addPenny();

c1.bankCount();

c1.bankValue();

Explanation:

Response:

#section 1

def listofWordswitha(text):

   ''' This function outputs all words from a string that include the letter 'a' '''

   tex = text.split()

   new = []

#section 2

   for word in tex:

       for char in word:

           if char == 'a':

               new.append(word)

               break

   return new

Clarification:

#section 1

First, you need to establish your function and provide an argument representing the string that will be utilized.

It's beneficial to include a docstring that describes the function's purpose, which I've added.

Then, use the split method to break the string into a list. In conclusion, you create a list to store all the words that contain 'a'.

#section 2

The terminology chosen is specific to facilitate understanding.

FOR EVERY WORD inside the list and FOR EACH LETTER in the WORD.

IF a LETTER 'a' is found in the word, ADD that WORD to the NEW LIST.

The append function serves to incorporate new entries into the list.

A break statement is employed to avoid redundancy since some words might have multiple instances of 'a'. Thus, upon encountering a word containing 'a', it appends it and shifts to the next word.

Ultimately, the new list is returned.

I will utilize your inquiry to validate the code and provide the results for you.