Strings:MakingAnagrams.java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
    public static int numberNeeded(String first, String second) {
        int a[] = new int[26];
        int b[] = new int[26];
        for(int i=0;i<first.length();i++){
            a[first.charAt(i)-97]++;
        }
        for(int i=0;i<second.length();i++){
            b[second.charAt(i)-97]++;
        }
        int count = 0;
        for(int i=0;i<26;i++) {
            count += Math.abs(a[i]-b[i]);
        }
        return count;
    }
  
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String a = in.next();
        String b = in.next();
        System.out.println(numberNeeded(a, b));
    }
}