IN JAVA PLEASE AND MAKE IN JOptionPane !!

also please include Descriptive block and inline comments so i can understand them!!

Question 1 (10 Marks) Modify question 3 of Assignment 1 to accept a telephone number with any number of letters. The output should display a hyphen after the first 3 digits and subsequently a hyphen (-) after every four digits. Also, modify the program to process as many telephone numbers as the user wants. To make telephone numbers easier to remember, some companies use letters to show their telephone number. For example, using letters, the telephone number 438-5626 can be shown as GET LOAN. In some cases, to make a telephone number meaningful companies must use more than seven letters. For example, 225-5466 can be displayed as CALL HOME, which uses eight letters. Question 1 (10 Marks) Modify question 3 of Assignment 1 to accept a telephone number with any number of letters. The output should display a hyphen after the first 3 digits and subsequently a hyphen (-) after every four digits. Also, modify the program to process as many telephone numbers as the user wants. To make telephone numbers easier to remember, some companies use letters to show their telephone number. For example, using letters, the telephone number 438-5626 can be shown as GET LOAN. In some cases, to make a telephone number meaningful companies must use more than seven letters. For example, 225-5466 can be displayed as CALL HOME, which uses eight letters