<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Write a function in Java that sorts a given array of integers.
<|im_end|>
<|im_start|>assistant
public static int[] sortArray(int[] arr) { 
    int n = arr.length; 
  
    for (int i = 0; i < n-1; i++) 
        for (int j = 0; j < n-i-1; j++) 
            if (arr[j] > arr[j+1]) 
            { 
                // swap arr[j+1] and arr[i] 
                int temp = arr[j]; 
                arr[j] = arr[j+1]; 
                arr[j+1] = temp; 
            } 
    return arr; 
}<|im_end|>
