is that anybody help me in java program . to reading the file using the array in

Question

is that anybody help me in java program . to reading the file using the array index p1artists.txt

here is the p1artists.txt file
Artist ID Artist Name
1 Acconci
2 Ames
3 Aserty
4 Baron
5 Battenberg

Then using the add method to enter the row 6 and 7

here is the sample of my output p2artists2a.txt”

Artist ID Artist Name
1 Acconci
2 Ames
3 Aserty
4 Baron
5 Battenberg
6 Bindner
7 Blain

then using the delete method to delete the Artist ID Artist Name 2

Here is the sample of my output p2artists2b.txt

Artist ID Artist Name
1 Acconci
3 Aserty
4 Baron
5 Battenberg
6 Bindner
7 Blain

Here is the sample of final my output file using A for add and D for delete the file name p2artistis2c.txt”

Action ArtistID Artist Name
A 6 Bindner
A 7 Blain
D 2
A 8 Blum
D 4
A 9 Budd
D 8

Explanation / Answer

package FileHandlingChegg;

import java.awt.List;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Scanner;


public class FileHandler {

    public static void add() throws IOException
    {
       
        File f=new File("/home/shekhar/Desktop/chegg/CS/java/FileHandling/p1artists");
        FileReader fr=new FileReader(f);
        File f2=new File("/home/shekhar/Desktop/chegg/CS/java/FileHandling/p2artists");
        FileWriter fw=new FileWriter(f2,true);
        BufferedReader br=new BufferedReader(fr);
        BufferedWriter bw=new BufferedWriter(fw);
        ArrayList lines=new ArrayList();
        String line=line=br.readLine();
        while(line!=null)
        {
            System.out.println(line);
            line=br.readLine();
        }
       
        //Add record
        Scanner sc=new Scanner(System.in);
        String name;
        int id;
        System.out.println("Enter Artist Name");
        name=sc.nextLine();
        System.out.println("Enter Artist Id");
        id=sc.nextInt();
        bw.append(" "+id+" "+name);
        bw.close();
        fw.close();
    }
   
    public static void eraseLast() throws IOException {
        File f2=new File("/home/shekhar/Desktop/chegg/CS/java/FileHandling/p2artists");
        RandomAccessFile f = new RandomAccessFile(f2, "rw");
        byte b;
        long length = f.length() - 1;
        do {                    
        length -= 1;
        f.seek(length);
           b = f.readByte();
        } while(b != 10);
        f.setLength(length+1);
        f.close();
       
    }
   

    public static void main(String[] args) throws IOException {
   
    add();
    eraseLast();
    eraseLast();
           
    }

}

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