Anagram puzzle

Anagram.java

public class Anagram {
    public static void main(String[] args) {
        String a = IO.readString();
        String b = IO.readString();
        
        boolean anagram = true;
        int count = 0;
        
        if (a.length()==b.length()) {
            for ( int i = 0 ; i < a.length() ; i++) {
                char x = a.charAt(i);
                
                for ( int j = 0 ; j < b.length() ; j++ ) {
                    if (x==b.charAt(j)) {
                        count++;
                    }
                    if (x==a.charAt(j)) {
                        count--;
                    }
                }
                if (count!=0) {
                    anagram = false;
                }
            }
        } else {
            anagram = false;
        }
        
        System.out.println(anagram);
    }
}