text mod test

TextModTest.java

import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.BufferedWriter;
import java.io.PrintWriter;

public class TextModTest {
	private final String filename = "file.txt";
	private final String copyname = "~file.txt";
	private final String fileEncode = "UTF-8";
	private final String copyEncode = "Windows-31J";

	public static void main(String args[]) {
		TextModTest obj = new TextModTest();
		
		try {
			obj.copy();
			obj.make();
		} catch(Exception e) {
			System.out.println("Exception...orz " + e);
		}
	}

	private void copy() throws Exception {
		FileInputStream fis = new FileInputStream(filename);
		InputStreamReader isr = new InputStreamReader(fis, fileEncode);
		BufferedReader br = new BufferedReader(isr);

		FileOutputStream fos = new FileOutputStream(copyname);
		OutputStreamWriter osw = new OutputStreamWriter(fos, fileEncode);
		BufferedWriter bw = new BufferedWriter(osw);
		PrintWriter pw = new PrintWriter(bw);

		String lineGet;

		while ((lineGet = br.readLine()) != null) {
 			pw.println(lineGet);
		}

		pw.close();
	}

	private void make() throws Exception {
		FileInputStream fis = new FileInputStream(copyname);
		InputStreamReader isr = new InputStreamReader(fis, fileEncode);
		BufferedReader br = new BufferedReader(isr);

		FileOutputStream fos = new FileOutputStream(filename);
		OutputStreamWriter osw = new OutputStreamWriter(fos, copyEncode);
		BufferedWriter bw = new BufferedWriter(osw);
		PrintWriter pw = new PrintWriter(bw);

		String lineGet;

		while ((lineGet = br.readLine()) != null) {
			lineGet = modText(lineGet);
 			pw.println(lineGet);
		}

		pw.close();
	}

	private String modText(String lineGet) {
		// do something

		return lineGet;
	}
}