一點一點看JDK源碼（五）java.util.ArrayList 後篇之removeIf與Predicate

 1 package com.FM.ArrayListStudy;
 2 
 3 import java.util.ArrayList;
 4 import java.util.function.Predicate;
 5 
 6 public class RemoveIfInArrayListStudy {
 7     public static void main(String[] args) {
 8         ArrayList<Integer> list = new ArrayList<Integer>();
 9         for (int i = 0; i < 20; i++) {
10             list.add(i + 1);
11         }
12         System.out.println(list);
13         list.removeIf(new Predicate<Integer>() {
14 
15             @Override
16             public boolean test(Integer t) {
17                 if (t % 2 == 1) {
18                     return true;
19                 } else {
20                     return false;
21                 }
22             }
23         });
24         System.out.println(list);
25     }
26 }