prog2/ArrayManipulation.java

  import java.util.Arrays; 
  
  public class ArrayManipulation { 
  
  public static int[] reverseArray(int[] arr) { 
  for (int i = 0; i<arr.length/2; i++) { 
  int tmp = arr[i]; 
  arr[i] = arr[arr.length -1 - i]; 
  arr[arr.length - 1 - i] = tmp; 
  } 
  return arr; 
  } 

  public static int[] squareEach(int[] arr)
  {
    int[] neu = new int[arr.length];
    for(int i=0; i<arr.length; i++)
    {
      neu[i] = arr[i] * arr[i];
    }
    return neu;
  }
  
  public static void main(String[] args) { 
  int[] arr = {1,2,3,4,5};
  System.out.println(Arrays.toString(reverseArray(arr))); 
  } 
  }