在0-100内取20个随机数,偶数排序

import java.util.ArrayList;import java.util.Collections;import java.util.List;import java.util.Random;/*** @author WilliamRong**/public class test {public static void main(String[] args) {   // TODO Auto-generated method stub   List<Integer> intList = new ArrayList<Integer>();   List<Integer> intList2 = new ArrayList<Integer>();   Random random = new Random();   for (int i = 1; i <= 20; i++) {    int j = random.nextInt(100);    intList.add(j);    System.out.println(j);   }   for (int i = 0; i < intList.size(); i++) {    if (intList.get(i) % 2 == 0) {     intList2.add(intList.get(i));    }   }   System.out.println("----------------------------------");   for (int i = 0; i < intList2.size(); i++) {    System.out.println(intList2.get(i));   }   System.out.println("----------------------------------");     Collections.sort(intList2);//正序   Collections.sort(intList2, Collections.reverseOrder());//倒序   for (int i = 0; i < intList2.size(); i++) {    System.out.println(intList2.get(i));   }}}