java programming

1. Create a program that writes an Integer object to a stream and reads this object from the stream. 2. Simple Encryption. Read from a file specified by the user and encrypt the content of the file using a simple shifting technique. Also, ask the user to input the shift size. Output the encrypted message to another file whose filename is also provided by the user. For example, Shift size: 1 Message read from the file: Hello Encrypted message: Ifmmp