判断同字幕异序词

Write a method to decide if two strings are anagrams or not

解法：

1 排序比较 （本次解法）

2 判断每个字符出现的个数（直接）

import java.util.Arrays;

public class Anagrams {

    public static boolean isAnagrams(String a,String b) {
        char[] array_a=a.toCharArray();
        char[] array_b=b.toCharArray();
        Arrays.sort(array_a);
        Arrays.sort(array_b);
        if(array_a.length!=array_b.length)
        {
            return false;
        }
        for (int i = 0; i < array_a.length; i++) {
            if(array_a[i]!=array_b[i])
                return false;
        }
        return true;

    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        System.out.println(isAnagrams("aac", "aca"));
        System.out.println(isAnagrams("aacd", "aca"));
        System.out.println(isAnagrams("a", "a"));
        System.out.println(isAnagrams("", ""));
        System.out.println(isAnagrams("aaadd", "ddaaa"));

    }

}