在Java中可以使用replace函数。 /*** 递归方法求解res *@params *@return*/publicstaticString removeDuplicate_Recursively(String s){if(s ==null)returnnull;intlen =s.length();if(len == 0)return"";/**存储字符及个数*/Map<Character,Integer> map =newHashMap<Character,Integer>();for(inti = 0...
Few simple examples to find and count the duplicates in aStreamand remove those duplicates sinceJava 8. We will useArrayListto provide aStreamof elements including duplicates. 1. Stream.distinct() – To Remove Duplicates 1.1. Remove Duplicate Strings Thedistinct()method returns aStreamconsisting of...
Remove the duplicate values in Java code 先上传代码, 1List<String>criteriaList = new ArrayList<String>();2EfsnCompanyCriteria companyCriteria = new EfsnCompanyCriteria(user.getCompanyId(),EfsnCompanyCriteria.CRITERIA1,con);5EfsnCompanyCriteria mpCompanyCriteria = new EfsnCompanyCriteria(user.getComp...
Note that this method modifies the elements in the original list, and does not create a new list. 2. UsingStream.distinct()to Remove Duplicate Elements and Get a New List We can use the Java 8Stream.distinct()method which returns a stream consisting of the distinct elements compared by the...
public String toString() { return String.format("Data[%d]", this.id); } } Output: Data List = [Data[10], Data[20], Data[10], Data[20]] Unique Data List = [Data[10], Data[20], Data[10], Data[20]] The distinct() method didn’t remove the duplicate elements. It’s because...
Return the final string after all such duplicate removals have been made. It is guaranteed the answer is unique. Example 1: Input:"abbaca"Output:"ca"Explanation:For example, in "abbaca" we could remove "bb" since the letters are adjacent and equal, and this is the only possible move. ...
Return the final string after all such duplicate removals have been made. It can be proven that the answer is unique. Example 1: Input: s = "abbaca"Output: "ca"Explanation: For example, in "abbaca" we could remove "bb" since the letters are adjacent and equal, and this is the only...
Given a string which contains only lowercase letters, remove duplicate letters so that every letter appear once and only once. You must make sure your result is the smallest in lexicographical order among all possible results. Example: Given “bcabc” ...
Java documentation forandroid.provider.ContactsContract.REMOVE_DUPLICATE_ENTRIES. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...
java: 代码语言:javascript 复制 classSolution{publicStringremoveDuplicateLetters(String s){StringBuilder sb=newStringBuilder();int[]count=newint[26];boolean[]used=newboolean[26];char[]chs=s.toCharArray();for(char c:chs){count[c-'a']++;}for(char c:chs){count[c-'a']--;if(used[c-'a'...