I have this code to read from a text file and then modify it. Then write the modified content to another text file.
I am getting a null pointer exception at out.write(read);
And also, not all lines are being written, can some one help me please. Thank you
import java.util.*;
import java.io.*;
public class File
{
BufferedReader in;
BufferedWriter out;
String read;
public File()
{
try {
in = new BufferedReader(new FileReader("myFile.txt"));
Scanner scan = new Scanner(in);
out = new BufferedWriter(new FileWriter("output.txt"));
while (scan.hasNext()) {
read = in.readLine();
//Write codes to modify file here
//___codes not written yet______//
out.write(read);
scan.next();
System.out.println("file output: " + read);
}
out.close();
in.close();
} catch (IOException e) {
System.out.println("There was a problem:" + e);
}
}
public static void main(String[] args)
{
File File = new File();
}
}
try
while((read = in.readLine()) != null)
instead of
while (scan.hasNext())