Java

using string, switch or if statements

Telephone keypads have an international standard for mapping the alphabet to the number keys. This can be seen in the image below: Write a program which can take a series of 10 letters and converts them to the corresponding phone number. the input must be exactly 10 characters, no more, no less. the output must be formatted in the following format (###) ###-####. You are NOT allowed to use loops or arrays. You may only use coding techniques found in chapters. Your program must work for any input