How can I answer this problem using java programming language?

Question

A company wants to transmit data over the telephone but is concerned that its phones maybe tapped. It was asked you to write a program that will encrypt the data so that it may be transmitted more securely. All the data is transmitted as four-digit integers. Your program should read a four-digit integer entered by the user and encrypt it as follows. Replace each digit with the result of adding 7 to the digit and getting the remainder after dividing the new value by 10. Then swap the first digit with the third and swap the second digit with the fourth. Then print the encrypted integer. How can I answer this problem using java programming language?

Answer 1

I do not think anyone will do your java project assignment for free.