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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

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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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: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
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.
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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