Kodowanie pliku

import java.io.*;
import java.nio.*;
import java.nio.channels.*;
import java.nio.charset.*;
import java.nio.file.Paths;

public class Encoding {


	public static void main(String[] args) {
		
		Encoding();

	}

	public static void Encoding(){
	String file = System.getProperty("user.home") + "/6.txt";

	
	Charset inpcs = Charset.forName("Cp1250");
	Charset outcs = Charset.forName("UTF-8");
	
		FileChannel fc = FileChannel.open(Paths.get(file), READ, WRITE);
		ByteBuffer buf = ByteBuffer.allocate((int)fc.size());
		fc.read(buf);
		buf.flip();
		CharBuffer cb = inpcs.decode(buf);
		buf = outcs.encode(cb);
		fc.write(buf);
		fc.close();
}
}