$7\mathrm{.}5$ Ch $7$ Warm up: Parsing strings

$(1)$ Prompt the user for a string that contains two strings separated by a comma. $(1$ pt$)$

Examples of strings that can be accepted:

Jill, AllenJill $,$ AllenJill,Allen

Ex:

Enter input string: Jill, Allen

$(2)$ Report an error if the input string does not contain a comma. Continue to prompt until a valid string is entered. Note: If the input contains a comma, then assume that the input also contains two strings. $(2$ pts$)$

Ex:

Enter input string: Jill Allen Error: No comma in string. Enter input string: Jill, Allen

$(3)$ Using string splitting, extract the two words from the input string and then remove any spaces. Output the two words. $(2$ pts$)$

Ex:

Enter input string: Jill, Allen First word: Jill Second word: Allen

$(4)$ Using a loop, extend the program to handle multiple lines of input. Continue until the user enters q to quit. $(2$ pts$)$

Ex:

Enter input string: Jill, Allen First word: Jill Second word: Allen Enter input string: Golden $,$ Monkey First word: Golden Second word: Monkey Enter input string: Washington,DC First word: Washington Second word: DC Enter input string: q