Java file copy improved version FileWriter & FileReader

package com.io.liushuaishuai;

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class copyjavaDemo02 {

 public static void main(String[]args) throws IOException {
 FileReader fr = new FileReader("myIOstream\\fos.txt");
 FileWriter fw = new FileWriter("myIOstream\\java.txt");

 int ch;
 while ((ch= fr.read()) != -1) {
 fw.write(ch);
 }
 fr.close();
 fw.close();

 }
}