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 FileInputOutput {

	/**
	 *File read / write sample.<br>
	 *Read a file and write it to another file.<br>
	 *The input file is SJIS.<br>
	 *Output file is UTF-8(With BOM)
	 *
	 * @param args
	 */
	public static void main(String args[]) throws Exception {

		BufferedReader br = null;
		BufferedWriter bw = null;

		try {
			//File reading
			//
			File inFile = new File("D:/", "input.csv");
			br = new BufferedReader(new InputStreamReader(new FileInputStream(
					inFile), "SJIS"));

			//File output stream
			File outFile = new File("D:/", "output.csv");
			FileOutputStream os = new FileOutputStream(outFile);

			//Grant BOM.
			os.write(0xef);
			os.write(0xbb);
			os.write(0xbf);

			//Generate BufferedWriter
			bw = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));

			String str;

			//Write to file
			while ((str = br.readLine()) != null) {
				bw.write(str + "\n");
			}

			//File deletion(You can delete the read file by uncommenting it.)
			// inFile.delete();
			br.close();
			bw.close();
		} finally {
			if (br != null) {
				br.close();
			}
			if (bw != null) {
				bw.close();
			}
		}
	}
}

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