383. Ransom Note

public static boolean canConstruct(String ransomNote, String magazine) { boolean usedFlag[] = new boolean[magazine.length()]; int i = 0,j = 0; for(i = 0;i <ransomNote.length(); i++) { char needFind = ransomNote.charAt(i); for(j = 0; j < magazine.length(); j++) { if(!usedFlag[j] && magazine.charAt(j) == needFind){ usedFlag[j] = true; break; } } if(j >=magazine.length()) { return false; } } return true; }