import java.util.Arrays;

public class ArrayManipulation {

  public static void main(String[] args) {

    int[] arr = { 3, 6, 7, 4, 5 };
    System.out.println(Arrays.toString(reverseArray(arr)));

  }

  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;

  }

}