Test Writing: String Is Alphabetic

Created By: Pranav Narayanan

/ Version: 2025.2.0

Write a function that, given a non-null String, returns true if it contains only alphabetic characters, and false otherwise.

For example, given "abc", you would return true. Given "ab12", you would return false. For simplicity, spaces are considered non-alphabetic, so "ab c" would return false.

You may find the documentation on String.matches() useful. You may have to look into how to use regular expressions.

Test Design Challenge

You're challenge is to write tests for this problem described above.

• Provide a method named test that accepts no arguments and does not return a value.
• If the implementation of the class described above is incorrect, your test method should throw an exception.
• If it is correct, do not throw an exception.
• You may want to use Java's assert method