Search in java file

Question

The teacher passed an activity, which is for you to put the files in a txt, read, change and delete... I am programming the search function, and it is not working. You could help me?

public void searchUser(String login){
        String result = "";
        try {
        FileReader fr = new FileReader("C:\\Users\\vanes\\Documents\\WEBprog\\Archive\\login.txt");
        BufferedReader br = new BufferedReader(fr);
        while (br.ready()) {
            result += br.readLine() + "\n";
            String divider[] = new String[2];//split                
            divider = result.split(";"); //split
            if(divider[1].equals(login)){
                System.out.println(divider[1]);
                break;
            }
        }
        br.close();
        fr.close();
    } catch (Exception ex) {
        System.out.println("Erro");
    }
}

That’s the code part. It should read line by line from login.txt, through the split separate the line into parameters of a vector, and compare the input with one of these parameters that is already defined. It seems to me that he is not passing the other lines and is only reading the first, when I "seek" the one of the first line, he returns perfectly, the one of the others not... why?

Answer 1

Cocoa, how are you? Your question is not very clear, please write more details. But before hand:

1) check if the file path is correct

2) Your Divider vector at position 1, does it have any value? if it is null it will give an error in the equals method. do it here

if(diveder[1] != null) {
    if(divider[1].equals(login)){
                    System.out.println(divider[1]);
                    break;
                }
}