Description:
Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.
Please note that the string does not contain any non-printable characters.
Example:
Input: "Hello, my name is John"
Output: 5
题意:给定一个字符串,判断这个字符串可以划分为几个连续的部分(不包含空白符);
解法:划分的符号可以是逗号或者是空格,我们可以使用正则表达式来表示这个划分的符号;\u002c表示符号‘,’;\u0020表示符号‘ ’;
Java
class Solution {
public int countSegments(String s) {
return "".equals(s.trim()) ? 0 : s.trim().split("\u002c?\u0020+").length;
}
}