How to read a file?

Question

private void getInput() throws IOException {

    InputStream resourceAsStream = this.getClass().getResourceAsStream(
            "aaa.txt");
    BufferedReader br = new BufferedReader(new FileReader(
            resourceAsStream.toString()));
    try {
        StringBuilder sb = new StringBuilder();
        String line = br.readLine();

        while (line != null) {
            sb.append(line);
            sb.append(System.lineSeparator());
            line = br.readLine();
        }
        String everything = sb.toString();
        System.out.println(everything);
    } finally {
        br.close();
    }
}

The file aaa.txt is in the same project and it cannot be read, I have java.lang.NullPointerException when I execute that.

possible duplicate of [Read/convert an InputStream to a String](http://stackoverflow.com/questions/309424/read-convert-an-inputstream-to-a-string) — Rakesh KR, Apr 18 '14 at 19:00
BufferedReader br = new BufferedReader(new FileReader( resourceAsStream.toString())); here — user3503255, Apr 19 '14 at 01:42

score 0 · Answer 1 · answered Apr 23 '14 at 07:29

0

Only do this

BufferedReader br = new BufferedReader(new FileReader("aaa.txt"));

But put the file in the filereader instead.

Hope it helpt.

answered Apr 23 '14 at 07:29

JeppeSRC

89
1
9

How to read a file?

1 Answers1