Remove Duplicates from String using Hashing

 

import java.util.*;

//Create RemoveDuplicatesExample3 for removing duplicate characters  
public class RemoveDuplicatesExample3
{
    //Create removeDuplicates() method for removing duplicates using LinkedHashSet  
    static void removeDuplicates(String str)
    {
        //Create LinkedHashSet of type character   
        LinkedHashSet<Character> set = new LinkedHashSet<>();
        //Add each character of the string into LinkedHashSet   
        for(int i=0;i<str.length();i++)
            set.add(str.charAt(i));

        // print the string after removing duplicate characters   
        for(Character ch : set)
            System.out.print(ch);
    }

    //main() method start  
    public static void main(String args[])
    {
        //Create string variable with default value  
        String str = "javaTpoint is the best learning website";
        //removeDuplicates() method by passing the string as an argument   
        removeDuplicates(str);
    }
}