writeFile.java

package filepackage;
import java.io.*;
public class FileWritingStreamWay {
	public static void main(String[] args) {
		InputStream istream;
		OutputStream ostream=null;
		int c;
		final int EOF = -1;
		istream = System.in;
		File outFile =  new File("Data.txt");		 
		System.out.println("Type characters to write in File – Press Ctrl+z to end ");
		try {
			ostream = new FileOutputStream(outFile);
			while ((c = istream.read()) != EOF)
				ostream.write(c);
		} catch (IOException e) {
			System.out.println("Error: " + e.getMessage());
		} finally {
			try {
				istream.close();
				ostream.close();
			} catch (IOException e) {
				System.out.println("File did not close");
			}
		}
	}
}