解法一: 1publicstaticbooleancontainsNearbyAlmostDuplicate1(int[] nums,intk,intt){2if(k<1 || t<0)returnfalse;34TreeSet<Integer> set =newTreeSet<Integer>();5for(inti=0;i<nums.length;i++){6intcurrent =nums[i];7if((set.floor(current)!=null&& current<= set.floor(current)+t)||8(...
Count of duplicate elements:3Duplicate elements in the array:[1,3,5]Unique elements in the array:[2,4] 2. UsingStreamandSet Java Setclass stores only the distinct elements. We can use this feature to find the distinct elements in the array and then find unique and duplicate elements using...
TheLinkedHashSetis another good approach for removing duplicate elements in anArrayList.LinkedHashSetdoes two things internally : Remove duplicate elements Maintain the order of elements added to it In the given example,itemsin theArrayListcontain integers; some are duplicate numbers e.g. 1, 3, an...
Write a Scala program to remove duplicate elements from an array of integers. Sample Solution: Scala Code: objectScala_Array{defmain(args:Array[String]):Unit={varmy_array=Array(0,0,3,-2,-2,4,3,2,4,6,7)//Call the following java class for array operationimportjava.util.Arrays;println(...
Using a Java Set to Remove Duplicates in a List Alternatively, we can use one of the Java Set implementations to deduplicate a Java List.Java Setis a distinct collectionof elements. Please note that we can use HashSet to remove duplicate elements from a List, but it is an unordered collec...
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...
Java Stream distinct() forEach() Example Stream distinct() with custom objects Let’s look at a simple example of using distinct() to remove duplicate elements from alist. package com.journaldev.java; import java.util.ArrayList; import java.util.List; ...
Finding a duplicate lines from a file is not a hard problem. But sometime in an interview question, folks sometimes get very confused about the method
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Convert array to string Convert Arraylist to delimited string Convert C# code in to PowerShell Script Convert character to ASCII Convert CURL syntax to Powershell Invoke-Webrequest Convert Date Format of a custom attribute from yyyy/MM/dd to MM-dd-yyyy Convert flat log file to CSV format Co...