此java程序可以用来统计一个文档中所有的字符个数、word的个数，26个英文字母出现的频率以及文档行数，并把结果写到别外一个文档中-This java program one statistics can be used to document the number of all the characters, word number, the 26 English letters document the frequency and number of rows, and the results of other things wrote a document