About Question enthuware.ocpjp.v17.2.3756 :

[raphaelzintec]

why this works with FileReader i learned that this way works only with BufferedReader

Code: Select all

 char[] buf = new char[5];
        try(FileReader fr = new FileReader("C:\\Users\\Downloads\\test1.txt");
            FileWriter fw = new FileWriter("C:\\Users\\Downloads\\test2.txt")){
            int count = 0;
            while( (count = fr.read(buf)) != -1){                 
                fw.write(buf, 0, count); 
            }
        }

[admin]

I am not sure I understand your question. Which part of the above code are you asking about - the try-with-resource part, the fr.read call, fw.write call, or something else?

[raphaelzintec]

i tought this way was only made for BufferedReader, but actually FileReader can also use this way, BufferedReader has only readLine that FileReader has not

so i understand better