public class Solution {

     public boolean canConstruct(String ransomNote, String magazine) {

         int[] ransomNum = new int[256];

         int[] magNum = new int[256];

         for (int i = 0; i < 256; i++) {

             ransomNum[i] = magNum[i] = 0;

         }

         for (int i = 0; i < ransomNote.length(); i++) {

             ransomNum[(int)ransomNote.charAt(i)]++;

         }

         for (int i = 0; i < magazine.length(); i++) {

             magNum[(int)magazine.charAt(i)]++;

         }

         for (int i = 0; i < 256; i++) {

             if (ransomNum[i] > magNum[i]) return false;

         }

         return true;

     }

 }