import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

public class Test {
	
	public static void main(String[] args) {
		ArrayList<Integer> arrayList = new ArrayList<Integer>();
        arrayList.add(1);
        arrayList.add(3);
        arrayList.add(5);
        arrayList.add(7);
        arrayList.add(9);
        arrayList.add(2);
        arrayList.add(4);
        arrayList.add(6);
        arrayList.add(8);
        arrayList.add(0);
        System.out.println("原始数组:"+arrayList);
        Collections.reverse(arrayList);
        System.out.println("反转数组:"+arrayList);
        Collections.sort(arrayList);
        System.out.println("升序数组:"+arrayList);
        // 定制排序的用法
        Collections.sort(arrayList, new Comparator<Integer>() {
            @Override
            public int compare(Integer o1, Integer o2) {
                return o2.compareTo(o1);
            }
        });
        System.out.println("定制排序数组："+arrayList);
	}
}