Java help

Java program that uses a loop to prompt a user to input a clone ID and a DNA sequence. Include an if statement to exit the loop if the user entered the word exit. After the user entered an ID and the sequence, save them in a file in a FASTA format (header line starts with a > and followed by the clone id, and the sequences are in the subsequent lines). When the user entered exit, print out all the entered sequences to the screen in a FASTA format.