https://www.alisal... Welcome - Wentw... 1 Laptop Chip Level... Gmail Website Student Portal Teachers' Contact List Administration Contact List ourses / ICT104_0320 / Welcome to ICT104 Program Design and Development / Jay Convert the following UML diagram into the Java code. Write constructor, mutator and accessor methods for the given class. Create an instance of the class in a main method using a Demo class. Note: The structure of the class can be compiled and tested without having bodies for the methods. Just be sure to put in dummy return values for methods that have a return type other than void. User Attributes firstname: String lastname: String uid long username: String A B - III SX x