lx16.java

JAVA学习源代码,大家可以好好参考,请多提宝贵意见

import java.io.*;
public class Lx16
{
	public static void main(String args[]) throws IOException
	{
		int i;
		FileInputStream fin;
		FileOutputStream fout;
		try
		{
			try
			{
				fin=new FileInputStream(args[0]);
			}
			catch(FileNotFoundException e)
			{
				System.out.println("Input File Not Found");
				return;
			}
			try
			{
				fout=new FileOutputStream(args[1]);
			}
			catch(FileNotFoundException e)
			{
				System.out.println("Output File Not Found");
				return;
			}
		}
		catch(ArrayIndexOutOfBoundsException e)
			{
				System.out.println("Usage: Lx16 From TO");
				return;
			}
		try
		{
			do
			{
				i=fin.read();
				System.out.print((char)i);
				if(i!=-1)fout.write(i);
			}while(i!=-1);
		}
			catch(IOException e)
			{
				System.out.println("File Error ");
			
			}
			fin.close();
			fout.close();
		}
	}