Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Write a program named ValidateCard.java to perform the following tasks: 1. Your program accepts a numerical String from Cmd argument list. For example: 4388576018402626 2.
Write a program named ValidateCard.java to perform the following tasks: 1. Your program accepts a numerical String from Cmd argument list. For example: 4388576018402626 2. 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 * 2 = 4 2 * 2 = 4 4 * 2 = 8 1 * 2 = 2 6 * 2 = 12 (1 + 2 = 3) 5 * 2 = 10 (1 + 0 = 1) 8 * 2 = 16 (1 + 6 = 7) 4 * 2 = 8 3. Now add all single-digit numbers from step 2. 4 + 4 + 8 + 2 + 3 + 1 + 7 + 8 = 37 4. Add all digits in the odd places from right to left in the card number. 6 + 6 + 0 + 8 + 0 + 7 + 8 + 3 = 38 5. Sum the results from Step 3 and Step 4. 37 + 38 = 75 6. If the result from Step 5 is divisible by 10, then print The number is valid, otherwise print ?The number is invalid? For example, the number 4388576018402626 is invalid, but the number 4388576018410707 is valid.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started