Return the index of the first occurrence of needle in haystack, or-1ifneedleis not part ofhaystack. Clarification: What should we return whenneedleis an empty string? This is a great question to ask during an interview. For the purpose of this problem, we will return 0 whenneedleis an e...
The first occurrence is at index 0, so we return 0. Example 2: Input:haystack = "leetcode", needle = "leeto"Output:-1Explanation:"leeto" did not occur in "leetcode", so we return -1. Constraints: 1 <= haystack.length, needle.length <= 104 haystackandneedleconsist of only lowercas...
Given two stringsneedleandhaystack, return the index of the first occurrence ofneedleinhaystack, or-1ifneedleis not part ofhaystack. implSolution{pubfnstr_str(haystack:String,needle:String)->i32{lethlen=haystack.len();letnlen=needle.len();ifhlen<nlen{return-1;}foriin0..=(hlen-nlen){if&...
Java.Lang Assembly: Mono.Android.dll Overloads Rozbalit tabulku IndexOf(Int32) Returns the index within this string of the first occurrence of the specified character. IndexOf(String) Returns the index within this string of the first occurrence of the specified substring. ...
1.String.indexOf()API TheString.indexOf()in Java returns the index location of a specified character or string. TheindexOf()method is an overloaded method and accepts two arguments: substringorch: the substring that needs to be located in the current string. ...
String str1 ="Learn Java";intresult;// getting index of character 'J'result = str1.indexOf('J'); System.out.println(result);// 6// the first occurrence of 'a' is returnedresult = str1.indexOf('a'); System.out.println(result);// 2// character not in the stringresult = str1...
int indexOf(String str, int fromIndex) It returns the index of thefirst occurrenceof the specifiedsubstring, starting at thespecified indexwithin this string. Example publicclassStringIndexOfExample{ publicstaticvoidmain(String[]args){ Stringstr="javainsimpleway"; ...
This code example produces the following results: Find the first occurrence of a character using different values of StringComparison. The current culture is "en-US" - English (United States). Search for the string "Å" in the string "A Cheshire ca°t" Part 1: Start index and count are...
Find the Index of the First Occurrence in a String 在字符串中找到目标字符第一次出现的索引 Kyle 计算机,暂时的神。 解决方案 class Solution { public int strStr(String haystack, String needle) { int hayIndex = 0; int neeIndex = 0; boolean ing = false; if (haystack.length()<needle.length...
- LeetCodeleetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/description/ 解题思路 二重循环,没什么特别的 class Solution { public: int strStr(string haystack, string needle) { int index = 0; bool flag = true; for(int i = 0; i < haystack.size(); i++) { ...