Understanding Array Reference Assignment

In this problem, you will create a program that reads three initial array values and one update value from standard input, declares int[] numbers1, assigns it to numbers2, modifies numbers2[0] with the input value, then prints numbers1[0] to demonstrate that both variables share the same reference.

Input format:

• Line 1: Three integers for the initial array (space-separated)
• Line 2: The new value to assign to numbers2[0]

Output format:

numbers1[0]: <value>

Learning Objectives:

• Understand that arrays in Java are reference types
• Confirm that assigning an array variable copies the reference, not the data
• Recognize how reference types behave differently from primitive types