FileCopy1.java

import java.io.*;

class FileCopy1 {

    public static void main( String[] args )
    {
        int ch = 0;                              
  
        if ( args.length != 2 ) {
            System.err.println( "usage: java FileCopy source dest" );
            System.exit( 0 );
        }
        try (
            FileInputStream in = new FileInputStream( args[0] );
            FileOutputStream out = new FileOutputStream( args[1] );
	)
	{                                         
            while ( true ) {                       
                ch = in.read();
                if (ch == -1) break;                   
                out.write(ch);
            }
            out.close();
            in.close();
        } catch (IOException e) {                
          System.err.println( "IO error "+e );    
        }  
    }
}