FileReader和FileWriter

	       //文件字符流 FileReader,FileWriter
		FileReader fr=null;
		FileWriter fw=null;
		try {
			fr =new FileReader("e:/abc.txt");
			
			fw =new FileWriter("d:/a.txt");
			//读取一个文件并写入到另一个文件中char[]来中转
			char c[]=new char[1024];
			int n=0;
			while((n=fr.read(c))!=-1)
			{
				String s=new String(c, 0, n);
				fw.write(s);
				System.out.println(s);
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally
		{
			try {
				fr.close();
				fw.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}