how do I solve this java problem.

Section 1 Chapter 4 Write a program to enter your last name, first name and middle name. The program will output: Enter your last name followed by your first and middle names. If you have no middle name, enter \"None\". Please use the scanner nextLine( ) to read the input and StringTokenizer with a delimiter of Comma and blank space to break the input into string objects. Your program will finally output below with the first name, middle name and last name you read above: "Hello " + firstName + " " + middleName + " " + lastName