java 統計String字符串中字符的數量
想起String中沒有這種統計的方法，之前有看到過這個問題，有點興趣，寫一下思路： 定義一個String 然后把String 轉成char數組 定義一個hashmap 然后遍歷出char數組的數據，然后在hashmap里找對應的key，如果沒有，put進map，如果有，在原來值 ...
原文：[LeetCode] Number of Segments in a String 字符串中的分段數量
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. Ex ...
2016-12-06 14:07 3 4235 推薦指數：
相關推薦
[LeetCode] Number of Lines To Write String 寫字符串需要的行數
We are to write the letters of a given string S, from left to right into lines. Each line has maximum width 100 units, and if writing a letter ...
[LeetCode] Permutation in String 字符串中的全排列
Given two strings s1 and s2, write a function to return true if s2 contains the permutation of s1. In other words, one of the first string's ...
[LeetCode] Bold Words in String 字符串中的加粗單詞
Given a set of keywords words and a string S, make all appearances of all keywords in S bold. Any letters between <b> and </b> tags ...
[LeetCode] Find And Replace in String 在字符串中查找和替換
To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each ...
[LeetCode] Reverse Words in a String 翻轉字符串中的單詞
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update ...
[LeetCode] Magical String 神奇字符串
A magical string S consists of only '1' and '2' and obeys the following rules: The string S is magical because ...
[LeetCode] Unique Substrings in Wraparound String 封裝字符串中的獨特子字符串
Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like ...