Basic ArrayList Operations

In this problem, you will create a method that takes three strings as arguments, adds them to an ArrayList, and returns the list size followed by all elements as a newline-separated string.

Learning Objective: Understand ArrayList creation, adding elements, size checking, and for-each loop traversal

Overview

Create a method that manages a list of strings using ArrayList<String> and returns size information along with all elements.

Specifications

1. Implement the buildListSummary(String item1, String item2, String item3) method
2. Create an ArrayList<String> and add the three argument strings in order
3. Return a string with "Size: " + list size as the first line, followed by each element separated by newlines

Input/Output Example

buildListSummary("apple", "banana", "cherry")
→ "Size: 3\napple\nbanana\ncherry"