# Sorted Squares of a Sorted Array (Java) – Efficient Two-Pointer Approach

📰 Dev.to · Sharmila devi

Learn to efficiently square each element in a sorted array using Java and a two-pointer approach, improving performance and readability

intermediate Published 24 Mar 2026
Action Steps
  1. Create a new array to store the squared elements
  2. Initialize two pointers, one at the beginning and one at the end of the input array
  3. Compare the absolute values of the elements at the two pointers and square the larger one
  4. Store the squared element in the new array from the end
  5. Move the corresponding pointer towards the center of the array
Who Needs to Know This

Software engineers and developers working with sorted arrays can benefit from this approach to improve their code efficiency and scalability. This technique is particularly useful when dealing with large datasets

Key Insight

💡 Using a two-pointer approach can significantly improve the performance of squaring elements in a sorted array

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🚀 Efficiently square elements in a sorted array using Java and a two-pointer approach! 💻

Full Article

When working with sorted arrays, a seemingly simple transformation—like squaring each element—can...
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