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Solve this according to exception handling and file management of Java prograam.

Solve this according to exception handling and file management of Java prograam.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Solve this according to exception handling and file management of Java prograam. 

Write a program for managing the phone numbers on a file Create or open a file to store name and phone numbers Append as a new line at the end of the file Take as input name and phone number (use Scanner) Phone number must have the length of 6 characters Name cannot have less than 4 characters Handle exceptions if any of the name or phone number is NULL • Implement a method called addNew() to accomplish this input task Throw exception from addNew() if occurs Show the list of all names and phone numbers Print a name and the phone number in each line separated by a tab Handle exceptions Implement a method called showAllContacts() to accomplish this task Handle errors using a try-catch-finally code block
Transcribed Image Text:Write a program for managing the phone numbers on a file Create or open a file to store name and phone numbers Append as a new line at the end of the file Take as input name and phone number (use Scanner) Phone number must have the length of 6 characters Name cannot have less than 4 characters Handle exceptions if any of the name or phone number is NULL • Implement a method called addNew() to accomplish this input task Throw exception from addNew() if occurs Show the list of all names and phone numbers Print a name and the phone number in each line separated by a tab Handle exceptions Implement a method called showAllContacts() to accomplish this task Handle errors using a try-catch-finally code block
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