To make telephone numbers easier to remember, some companies use letters to represent their telephone number. For example, using letters, the telephone number 438-5626 can be represented as GET LOAN. In some cases, to make a telephone number meaningful, companies might use more than seven letters. For example 225-5466 can be displayed as CALL HOME, which uses eight letters. Write a program that prompts the user to enter a telephone number expressed in letters and outputs the corresponding telephone number in digits. If the user enters more than seven letters (spaces do not count), then process only the first seven letters and ignore the rest. Your program should also output the - (hyphen) after the third digit. Allow the user to use uppercase and lowercase letters, as well as spaces between the words. Hint1: You can use the charAt method of the class String to extract each character. For example, if str refers to a String variable, then the expression str.charAt(i) returns the character at the ith position of str. Recall that in a String, the position of the first character is 0. Hint2: You can use the toUpperCase or toLowerCase method of the class String to convert all chars in the String to upper or lower case. Hint3: You can use the following table for your conversion: Number Letter 0 1 2 none none ABC
To make telephone numbers easier to remember, some companies use letters to represent their telephone number. For example, using letters, the telephone number 438-5626 can be represented as GET LOAN. In some cases, to make a telephone number meaningful, companies might use more than seven letters. For example 225-5466 can be displayed as CALL HOME, which uses eight letters. Write a program that prompts the user to enter a telephone number expressed in letters and outputs the corresponding telephone number in digits. If the user enters more than seven letters (spaces do not count), then process only the first seven letters and ignore the rest. Your program should also output the - (hyphen) after the third digit. Allow the user to use uppercase and lowercase letters, as well as spaces between the words. Hint1: You can use the charAt method of the class String to extract each character. For example, if str refers to a String variable, then the expression str.charAt(i) returns the character at the ith position of str. Recall that in a String, the position of the first character is 0. Hint2: You can use the toUpperCase or toLowerCase method of the class String to convert all chars in the String to upper or lower case. Hint3: You can use the following table for your conversion: Number Letter 0 1 2 none none ABC
Chapter2: Using Data
Section: Chapter Questions
Problem 2GZ
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Transcribed Image Text:Homework 5-5
To make telephone numbers easier to remember, some companies use letters to represent their telephone
number. For example, using letters, the telephone number 438-5626 can be represented as GET LOAN.
In some cases, to make a telephone number meaningful, companies might use more than seven letters.
For example 225-5466 can be displayed as CALL HOME, which uses eight letters.
Write a program that prompts the user to enter a telephone number expressed in letters and outputs the
corresponding telephone number in digits. If the user enters more than seven letters (spaces do not count),
then process only the first seven letters and ignore the rest. Your program should also output the - (hyphen)
after the third digit.
Allow the user to use uppercase and lowercase letters, as well as spaces between the words.
Hint1: You can use the charAt method of the class String to extract each character. For example, if str refers to
a String variable, then the expression str.charAt(i) returns the character at the ith position of str. Recall that in a
String, the position of the first character is 0.
Hint2: You can use the toUpperCase or to LowerCase method of the class String to convert all chars in the
String to upper or lower case.
Hint3: You can use the following table for your conversion:
Number Letter
0
1
2
3
4
5
none
none
ABC
DEF
GHI
JKL
Transcribed Image Text:5
6
7
8
9
JKL
MNO
PQRS
TUV
WXYZ
If the user enters: Get Loan
Your program will output: 438-5626
If the user enters: cAll HoMe
Your program will output: 225-5466
Your prompt to the user should be:
Please enter a telephone number using letters:
Please note that your class should be named TelephoneNumber.
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