Square Numbers

Your task is to implement a Java method called squareNumbers that takes an array of integers and returns a new array containing the squares of each number.

Method Signature

public static int[] squareNumbers(int[] numbers)

Instructions

1. Implement the squareNumbers method in the provided Main class.
2. Ensure that your method handles arrays of various lengths and produces accurate results.

Required Output

For a given array numbers = [a, b, c, ...], the method should return an array result = [a^2, b^2, c^2, ...].

Examples

Example 1

Input:

squareNumbers([3])

Expected Output:

[9]

Example 2

Input:

squareNumbers([1, 2, 3, 4, 5])

Expected Output:

[1, 4, 9, 16, 25]

Edge Cases

• Verify that the method works correctly for an array with a single integer.

  • Example:

    squareNumbers([0])

    Expected Output:

    [0]

• Confirm that the method functions accurately with an array containing 10 integer elements.

  • Example:

    squareNumbers([10, 20, 30, 40, 50, 60, 70, 80, 90, 100])

    Expected Output:

    [100, 400, 900, 1600, 2500, 3600, 4900, 6400, 8100, 10000]

• Ensure the method produces correct results when given an array with 5 integer elements.

  • Example:

    squareNumbers([-2, -1, 0, 1, 2])

    Expected Output:

    [4, 1, 0, 1, 4]

Challenges

Challenge 1: Single Integer Input

• Description: Verify that the "squareNumbers" method works correctly when provided with an array containing a single integer.
• Test Input: [3]
• Expected Output: [9]

Challenge 2: Array with 10 Items

• Description: Ensure that the "squareNumbers" method functions accurately with an array containing 10 integer elements.
• Test Input: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
• Expected Output: [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]

Challenge 3: Array with 5 Items

• Description: Confirm that the "squareNumbers" method produces correct results when given an array with 5 integer elements.
• Test Input: [0, -1, 2, -3, 4]
• Expected Output: [0, 1, 4, 9, 16]