Remove duplicate values from a string in java

Question

Can anyone please let me know how to remove duplicate values from

String s=\"Bangalore-Chennai-NewYork-Bangalore-Chennai\"; 

and output sh

Answer 1

import java.util.*;

public class RemoveDuplicateWord {

    public static void main(String[] args) {
        String str = "Hai hello Hai how hello are how you";
        removeDupWord(str);
    }

    public static void removeDupWord(String input) {
        List<String> list = Arrays.asList(input.split(" "));
        LinkedHashSet<String> lhs = new LinkedHashSet<String>(list);
        for(String s : lhs) {
            System.out.print(s+" ");
        }                   
    }
}

Answer 2

You could add your strings to a HashSet.

1. Split the strings on a "-".
2. Store the individual words in Array. i.e arr[]

Sinppet :

Set<String> set = new HashSet<String>();

    for(int i=0; i < arr.length; i++){
      if(set.contains(arr[i])){
        System.out.println("Duplicate string found at index " + i);
      } else {
        set.add(arr[i]);
      }