Possible Duplicate:
Java: Checking equality of arrays (order doesnt matter)
I have two arrays :
String[] a1 = {"a", "b", "c"};
String[] a2 = {"c", "b", "a"};
I need to check if both contains same elements (and of same length) irrespective of order of elements.
I tried Arrays.equals(a1, a2) but it considers order of element.
org.apache.commons.lang.ArrayUtils does not provide this thing.
I know I can achieve the same by creating my own method (checking for same length, then sorting both array and then using Arrays.equals(a1, a2)) but wanted to know if this thing is provided in any API or there is more smart way to do the same.