import java.io.*;

public class FileOutputStreamDemo
{
	public static void main(String[] args)
	{   FileOutputStream fos = null;
	    FileInputStream  fis = null;
	    try{
			fis = new FileInputStream("FileOutputStreamDemo.java");
			fos = new FileOutputStream("out.txt");
			
			int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)
		{ ie.printStackTrace(); }
		finally
		{   try 
			{    if(fis != null)
					fis.close();
			}catch(IOException ie){ ie.printStackTrace(); }
			try 
			{    if(fos != null)
					fos.close();
			}catch(IOException ie){ ie.printStackTrace(); } 
		}		
	}
}

import java.io.*;

public class FileOutputStreamDemo2
{
	public static void main(String[] args)
	{   
	    try(FileInputStream fis = 
                           new FileInputStream("FileOutputStreamDemo2.java");
	        FileOutputStream  fos = new FileOutputStream("out2.txt", true);
		   )
		{   int c = fis.read();
			while(c != -1)
			{   fos.write((char)c);
				c = fis.read();
			}
		}
		catch(IOException ie)	{ ie.printStackTrace(); }
	}
}