How to delete a line of string in a text file - Java

Asked Nov 09 '22 at 00:07

Active Nov 09 '22 at 00:07

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I used a filewriter class to write my inputs into a text file. Is there a way I can delete a line in the txt file created?

import java.util.*;
import java.io.*;

class Main {
    public static void main(String args[]) {
        Scanner read = new Scanner(System.in);
        try{
            FileWriter f = new FileWriter("output.txt", false);
            for (int x = 0; x < 5; x++){ 
                System.out.print("Enter a word: ");
                f.write(x+1 + " " + read.nextLine() + '\n');
            }
            f.close();
        }
        catch(IOException e){
            System.out.println(e);
        }
    }
}

The strings written in the file is

what if I want to remove 2 hello from the contents of the file? What should I do?

asked Nov 09 '22 at 00:07

dwextit

6

You read in the file, and write out a new file, except for the parts you want to 'delete'. – access violation Nov 09 '22 at 00:16
1

You can read the file into a List, then remove the 2nd entry of the list. Then write the list back into the same file overwriting it. – fauzimh Nov 09 '22 at 00:27
Please explain what difficulty you're having doing this. – tgdavies Nov 09 '22 at 00:51

How to delete a line of string in a text file - Java

0 Answers0