Byte stream, a character stream to read the file

1. byte stream (FileInputStream, FileOutputStream)

package study;
import java.io.*;
public class MyFile {
	public static void main(String[] args){
		// TODO Auto-generated method stub
		//读入的文件必须存在，否则报错
		File f=new File("c:\\f.txt");
		//写入的文件可以自行创建，若存在，则覆盖
		File fo=new File("c:\\d.txt");
		FileInputStream fis=null;
		FileOutputStream fos=null;
		try {
			//因为File没有读写的能力，所以需要使用InputStream类
			fis=new FileInputStream(f);
			fos=new FileOutputStream(fo);
			//定义一个字节数组，相当于缓存
			byte []bytes=new byte[1024];
			int n=0;//得到实际读取到的字节数
			//循环读取
			while((n=fis.read(bytes))!=-1){
				//把字节转成String
				//String s=new String(bytes,0,n);
	            fos.write(bytes);
				}
			}
		catch (Exception e) {
			e.printStackTrace();
		}finally{
			//关闭文件流必需放在finally语句块中
			try {
			//一定要关闭
				fis.close();
				fos.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
}

2. The character stream (FileReader, FileWriter)
the try, catch really use that much?

package study;
import java.io.*;
public class Wha {
	public static void main(String[] args) {
	FileReader fr=null;
	FileWriter fw=null;
	try {
		fr=new FileReader("c:\\f.txt");
		try {
			fw=new FileWriter("c:\\d.txt");
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		char a[]=new char[100];
		int n=0;
		try {
			while((n=fr.read(a))!=-1)
			{
				fw.write(a);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	} catch (FileNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	finally
	{
		try {
			fr.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			fw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	}

}