2. Draw the UML class diagram relationships for the program. LAB 3.3: Composition PROGRAM 3 // Java program to illustrate the concept of Composition // Class 1 public public String author; // Constructor Book (String title, String author) ( class Book ( String title; this.title-title; this.author author; } void bookDisplay() { System.out.println("Title: " + title. // Class 2 class Library ( //instantiate array of objects from class Book; private Book [] listbooks new Book [3]; // Library class contains list of books Library () { +" and "+" Author : " + author); } } listbooks [0] = new Book ("Introduction to java", "Daniel et al"); listbooks [1] - new Book ("Java How to program", "Dietel et al"); listbooks [2] - new Book ("Java easy peasy", "Pipizola et al"); void libDisplay() { for (int i=0; i