Question

统计任意一个字符串中,英文单词的总数,最长的单词长度,最短的单词长度,单词的平均长度(用JAVA写哦)例如：“ab+12

Answer 1

首先,你的例子string中最长的是dfg,长度是3,不是4,平均也是2.2

然后是代码

final String regex = "[^a-zA-Z]+";

String s = "ab+12cd*123dfg%&()as23BG";

String[] words = s.split(regex);

int min = Integer.MAX_VALUE,max = 0,total = 0,length;

for (String word :words) {

length = word.length();

total += length;

min = Math.min(min,length);

max = Math.max(max,length);

}

System.out.printf("Shortest length:%dn",min);

System.out.printf("Longest length:%dn",max);

System.out.printf("Average length:%fn",((double) total) / words.length);