Please help me to solve this in java by using ArrayList

Permutations Write a method ispermutation which return true if the two List arguments are permutations of each other, otherwise it returns false. Two lists are permutations if they contain the same elements, including the same number of duplicates, but they don't have to contain the elements in the same order. For example, (1,2,4] and [2,1,4] are permutations of each other