[20-05-22][Thinking in Java 35]Java Container 7 - Set

 1 package test_19_1;
 2 
 3 import java.util.Collections;
 4 import java.util.Set;
 5 import java.util.TreeSet;
 6 
 7 public class SetTest {
 8 
 9     public static void main(String[] args) {
10         Set<String> set = new TreeSet<String>();
11         
12         Collections.addAll(set, "Trying to create a method to count the vowels".split(" "));
13         int total = 0;
14         for (String string : set) {
15             char[] chArr = string.toCharArray();
16             int count = judgeChArr(chArr);
17             System.out.println(string + ": " + count);
18             total += count;
19         }
20         
21         System.out.println("total : " + total);
22         
23     }
24 
25     private static int judgeChArr(char[] chArr) {
26         
27         int count = 0;
28         for (char c : chArr) {
29             if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u') {
30                 count++;
31             }
32         }
33         
34         return count;
35     }
36 }

结果如下：

Trying: 1
a: 1
count: 2
creat: 2
method: 2
the: 1
to: 1
vowels: 2
total : 12