How to print even numbers in a large set of 20 random numbers from 1 to 100 by java

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Print even numbers in a large set of 20 random numbers within 1-100

Package cn.itcast.day04.demo03;import java.util.ArrayList;import java.util.Random;/** * @ author ChenDan * @ date 13:19 on 2019-7-9 * / public class Demo01SelectArray {public static void main (String [] args) {ArrayList big = new ArrayList (); Random r = new Random (); for (int I = 0; I < 20; iTunes +) {int num = r.nextInt + 1 Big.add (num);} ArrayList small = getSmall (big); System.out.println (small.size ()); for (int I = 0; I < small.size (); iTunes +) {System.out.println (small.get (I));}} public static ArrayList getSmall (ArrayList big) {ArrayList small = new ArrayList () For (int I = 0; I < big.size (); iTunes +) {int num = big.get (I); if (num% 2 = = 0) {small.add (num);}} return small }} the above is all the contents of the article "how java prints even numbers in 20 large sets of random numbers within 1-100". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!