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o All submitted assigned work must conform to proper Java programming style and documentation. Especially regarding naming conventions. Your sOurce code should contain comments describing the functionality Student full name and student number MUST be included on each submitted work o The word fille is to be submitted with proper page borders and formatting. For writing code, proper indentation, naming conventions are to be followed. Also paste the screenshot of code and its output (executed in IDE).

**6.31 (Financial: credit card number validation) Credit card numbers follow certain patterns. A credit card number must have between 13 and 16 digits. It must start with 4 for Visa cards 5 for Master cards 37 for American Express cards 6 for Discover cards In 1954, Hans Luhn of IBM proposed an algorithm for validating credit card numbers. The algorithm is useful to determine whether a card number is entered correctly, or whether a credit card is scanned correctly by a scanner. Credit card numbers are generated following this validity check, commonly known as the Luhn check or the Mod 10 check, which can be described as follows (for illustration, consider the card number 4388576018402626 ): 1. Double every second digit from right to left. If doubling of a digit results in a two-digit number, add up the two digits to get a single-digit number. 2. Now add all single-digit numbers from Step 1. 4+4+8+2+3+1+7+8=37 3. Add all digits in the odd places from right to left in the card number. 6+6+0+8+0+7+8+3=38 4. Sum the results from Step 2 and Step 3. 37+38=75 5. If the result from Step 4 is divisible by 10, the card number is valid; otherwise, it is invalid. For example, the number 4388576018402626 is invalid, but the number 4388576018410707 is valid. Write a program that prompts the user to enter a credit card number as a 1ong integer. Display whether the number is valid or invalid. Design your program to use the following methods: 1 " Return true if the card number is valid "/ public static boolean isValid(long number) 1 Get the result from Step 2 public static int sumofDoubleEvenPlace(long number) Return this number if it is a single digit, otherwise, - return the sum of the two digits " public static int getDigit(int number) /* Return sum of odd-place digits in number "/ pub1ic static int sumOf0ddP1ace(1ong number) 1 Return true if the number d is a prefix for number "/ pub1ic static boolean prefixkatched(long number, int d) 1 Return the number of digits in d public static int getsize(long d) 1 Neturn the first k number of digits from number. If the " number of digits in nunber is less than k, return number. "/ pub1ic static long getPrefix(long number, int k) Here are sample runs of the program: (You may also implement this program by reading the input as a string and processing the string to validate the credit card.) Enter a credit card number as a long integer: 4388576018410707 .tcz 4388576018410707 is valid Enter a credit card number as a long integer: 4388576018402626 from 4388576018402626 is invalid