Reverse Array Order Reverse Array Order arrays arrays

Reverse Array Order


java arrays reverse

If it's an Object array, then Collections.reverse(Arrays.asList(array)) will do the job with constant memory and linear time -- no temporary array required.

java arrays reverse

Use a single temp element.

int array[SIZE];int temp;for (int i = 0; i < SIZE/2; i++)  {     temp = array[i];     array[i] = array[SIZE-1 - i];     array[SIZE-1 - i] = temp;  }

java arrays reverse

You don't need to use a temporary array; just step through the array from the beginning to half-way through, swapping the element at i for the element at array.length-i-1. Be sure the handle the middle element correctly (not hard to do, but do make sure.)

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