How to Find Non-Repeated Character & First Repeated Character In Java ?

Non-Repeated & First Repeated Character Using HashMap

How to Find First Repeated & Non-Repeated Character In Java?

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package com.softwaretestingblog.programs;
import java.util.HashMap;
import java.util.Scanner;
public class Non_Repeated_Character {
   static void firstRepeatedNonRepeatedChar(String inputString)
   {
      //Creating a HashMap containing char as a key and occurrences as a value
      HashMap<Character, Integer> charCountMap = new HashMap<Character, Integer>();
      //Converting inputString to char array
      char[] strArray = inputString.toCharArray();
      //Checking each char of strArray
      for (char c : strArray)
      {
         if(charCountMap.containsKey(c))
         {
            //If char is present in charCountMap, incrementing it's count by 1
            charCountMap.put(c, charCountMap.get(c)+1);
         }
         else
         {
            //If char is not present in charCountMap,
            //adding this char in charCountMap with 1 as it's value
            charCountMap.put(c, 1);
         }
      }
      //checking for first non-repeated character
      for (char c : strArray)
      {
         if (charCountMap.get(c) == 1)
         {
            System.out.println("First Non-Repeated Character In '"+inputString+"' is '"+c+"'");
            break;
         }
      }
      //checking for first repeated character
      for (char c : strArray)
      {
         if (charCountMap.get(c) > 1)
         {
            System.out.println("First Repeated Character In '"+inputString+"' is '"+c+"'");

            break;
         }
      }
   }
   public static void main(String[] args)
   {
      @SuppressWarnings("resource")
      Scanner sc = new Scanner(System.in);
      System.out.println("Enter the string :");
      String input = sc.next();
      firstRepeatedNonRepeatedChar(input);
   }
}

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