LeetCode-in-Java

434. Number of Segments in a String

Easy

Given a string s, return the number of segments in the string.

A segment is defined to be a contiguous sequence of non-space characters.

Example 1:

Input: s = “Hello, my name is John”

Output: 5

Explanation: The five segments are [“Hello,”, “my”, “name”, “is”, “John”]

Example 2:

Input: s = “Hello”

Output: 1

Constraints:

• 0 <= s.length <= 300
• s consists of lowercase and uppercase English letters, digits, or one of the following characters "!@#$%^&*()_+-=',.:".
• The only space character in s is ' '.

Solution

public class Solution {
    public int countSegments(String s) {
        s = s.trim();
        if (s.isEmpty()) {
            return 0;
        }
        String[] splitted = s.split(" ");
        int result = 0;
        for (String value : splitted) {
            if (!value.isEmpty()) {
                result++;
            }
        }
        return result;
    }
}

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