android - reverse the order of an array

user401183 picture user401183 · Mar 23, 2011 · Viewed 49.3k times · Source

I have an array of objects.

Is it possible to make a new array that is a copy of this array, but in reverse order? I was looking for something like this.

// my array
ArrayList<Element> mElements = new ArrayList<Element>();
// new array
ArrayList<Element> tempElements = mElements;

tempElements.reverse(); // something to reverse the order of the array

Answer

Ted Hopp picture Ted Hopp · Mar 23, 2011

You can do this in two steps:

ArrayList<Element> tempElements = new ArrayList<Element>(mElements);
Collections.reverse(tempElements);