Write a program to input a word from the user and remove the duplicate characters present in it.

Write a program to input a word from the user and remove the duplicate characters present in it.

Example:

INPUT – abcabcabc
OUTPUT – abc

INPUT – javaforschool
OUTPUT – javforschl

INPUT – Mississippi
OUTPUT – Misp

import java.io.*;

class RemoveDupChar

{

    public static void main(String args[])throws IOException

    {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        System.out.print("Enter any word : ");

        String s = br.readLine();

        int l = s.length();

        char ch;

        String ans="";

         

        for(int i=0; i<l; i++)

        {

            ch = s.charAt(i);

            if(ch!=' ')

                ans = ans + ch;

            s = s.replace(ch,' '); //Replacing all occurrence of the current character by a space

        }

 

       System.out.println("Word after removing duplicate characters : " + ans);

    }

}




Output:

Example 1:
Enter any word : Mississippi
Word after removing duplicate characters : Misp

Example 2:
Enter any word : Attitude
Word after removing duplicate characters : Atiude