Development Class Java

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class Converter {
  public static void main(String args[]) throws Exception {
    FileInputStream fis = new FileInputStream(new File("input.txt"));
    BufferedReader in = new BufferedReader(new InputStreamReader(fis, "SJIS"));
    FileOutputStream fos = new FileOutputStream(new File("output.txt"));
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(fos, "UTF8"));
    int len = 80;
    char buf[] = new char[len];
    int numRead;
    while ((numRead = in.read(buf, 0, len)) != -1)
      out.write(buf, 0, numRead);
    out.close();
    in.close();
  }
}