jaVA INT
Read a text file and precede the line with the line number and write it to another new text file.
For example if you create a file Source.txt which has the following contents: Hello there I am supposed to have line numbers preceding me. Is it there ?
shall be written to Destination.txt as: 1. Hello there 2. I am supposed to have line numbers preceding me. 3. Is it there?
View Answers
December 15, 2010 at 4:45 PM
Hi Friend,
Try the following code:
import java.io.*;
class FileExample{
public static void main(String[] args)throws Exception{
BufferedWriter bw=new BufferedWriter(new FileWriter("C:/destination.txt",true));
LineNumberReader ln = new LineNumberReader(new FileReader(new File("C:/hello.txt")));
String line = "";
while ((line = ln.readLine()) != null){
System.out.println("Line: " + ln. getLineNumber() + ": " + line);
bw.write("Line: " + ln. getLineNumber() + ": " + line);
bw.newLine();
}
bw.close();
}
}
Thanks
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