Easy solution using inBuild Arrays methods

import java.io.; import java.util.; import java.util.Arrays;

public class Solution {

public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String a = scan.next();
    String b = scan.next();
    scan.close();

     if(check(a,b)){
        System.out.println("Anagrams");
    }
    else{
        System.out.println("Not Anagrams");
    }

}
public static boolean check(String s1,String s2){
    if(s1.length() != s2.length()){
        return false;
    }
    char a1[] = s1.toLowerCase().toCharArray();
    char a2[] = s2.toLowerCase().toCharArray();
    Arrays.sort(a1);
    Arrays.sort(a2);
    return Arrays.equals(a1, a2);
}

}