Inbuilt Permutation Generator

问题

Does java have an inbuilt method to permute or randomly shuffle an Array of numbers or characters? Something like Random Shuffle STL in c++??

回答1:

You can use Collections#shuffle

List<Integer> intList = new ArrayList<Integer>();
Collections.shuffle(intList);

If you have an array of numbers, you can use: -

Collections.shuffle(Arrays.asList(yourArray));

来源：https://stackoverflow.com/questions/12943118/inbuilt-permutation-generator