list

[Zensai]

how can we make a program that reads a list of words from a file (every line of the file having one word) and puts them in an array ? (supposing e.g. the words are 17 and setting the array size 20). using the buffered reader. (and the ACM library if necessary)

thank you

[hardwired]

Code:

import java.io.*;

public class ReadingAFile {
    public static void main(String[] args) {
        String[] strs = new String[20];
        int count = 0;
        BufferedReader br = null;
        try {
            File file = new File("readingAFile.txt");
            br = new BufferedReader(
                 new InputStreamReader(
                 new FileInputStream(file)));
            String line;
            while((line = br.readLine()) != null) {
                strs[count++] = line;
            }
            br.close();
        } catch(IOException e) {
            System.out.println("read error: " + e.getMessage());
        }
        for(int j = 0; j < count; j++) {
            System.out.println(strs[j]);
        }
    }
}

readingAFile.txt

Code:

Waking Ned Devine
No Country for Old Men
The Postman
Clearcut
The Princess Bride

[Zensai]

thank you man but it doesnt print out why? should it be something like j< count.length ?

[hardwired]

The value of the int variable "count" increases every time another line is read so its final value should be the number of non–null elements in the "strs" array.
Try this:

Code:

while((line = br.readLine()) != null) {
    strs[count++] = line;
    System.out.println("count = " + count + "  line = " + line);
}

to see what is happening inside the while loop.