This example shows how to copy contents of one file into another file using read & write methods of BufferedWriter class.
import java.io.*;
public class Main {
public static void main(String[] args)
throws Exception {
BufferedWriter out1 = new BufferedWriter
(new FileWriter("srcfile"));
out1.write("string to be copied\n");
out1.close();
InputStream in = new FileInputStream
(new File("srcfile"));
OutputStream out = new FileOutputStream
(new File("destnfile"));
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
BufferedReader in1 = new BufferedReader
(new FileReader("destnfile"));
String str;
while ((str = in1.readLine()) != null) {
System.out.println(str);
}
in.close();
}
}
Result:
The above code sample will produce the following result.