字节字符流

package com.dne;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.text.DateFormat;
import java.util.Date;

import com.dne.core.util.DateUtil;

public class IBM_Thread {

	static int i = 0;
	public static void main(String args[]){
		new MyThread().run();
		i = 2;
	}
	
	public static class MyThread extends Thread{

		@Override
		public void run() {
			// TODO Auto-generated method stub
			try {
				DateFormat dateFormt = DateUtil.getCnDateFormat("yyyy-MM-dd HH:mm:ss SSS");
				
				System.out.println("--------inputStream--------\n\n\n");
				System.out.println("--------BufferedReader < inputStreamReader--------\n\n\n");
				
				{
					System.out.println("start:"+dateFormt.format(new Date()));
					//为了达到最高效率，可要考虑在 BufferedReader 内包装 InputStreamReader
					BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream("D:\\cn_visual_studio_2010.iso"), "UTF-8"));
					char[] ch= new char[1024*10]; 
					StringBuffer sb = new StringBuffer();
					int result = -1;
					while((result = bufferedReader.read(ch))!=-1){
						sb.append(ch, 0, result);
						sb.reverse();
					}
					bufferedReader.close();
					//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));
					System.out.println("end:"+dateFormt.format(new Date()));
				}
				
				System.out.println("--------FileReader--------\n\n\n\n");
				{
					System.out.println("start:"+dateFormt.format(new Date()));
					//FileReader 用于读取字符流。要读取原始字节流,请考虑使用 FileInputStream
					FileReader fileReader = new FileReader("D:\\cn_visual_studio_2010_ultimate_x86_dvd_532347.iso");
					StringBuffer sb = new StringBuffer();
					char[] ch = new char[1024*10];
					int result = -1;
					while((result = fileReader.read(ch))!=-1){
						sb.append(ch, 0, result);
						sb.reverse();
					}
					//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));
					System.out.println("end:"+dateFormt.format(new Date()));
				}
				System.out.println("--------inputStreamReader--------\n\n\n");
				{
					System.out.println("start:"+dateFormt.format(new Date()));
					//InputStreamReader 类是字节到字符的转化桥梁
					InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream("D:\\cn_visual_studio_2010.iso"), "UTF-8");
					char[] ch= new char[1024*10]; 
					StringBuffer sb = new StringBuffer();
					int result = -1;
					while((result = inputStreamReader.read(ch))!=-1){
						sb.append(ch, 0, result);
						sb.reverse();
					}
					inputStreamReader.close();
					//System.out.println(new String(sb.toString().getBytes(),"UTF-8"));
					System.out.println("end:"+dateFormt.format(new Date()));
				}

				System.out.println("--------outputStream--------\n\n\n");
				
				{
					System.out.println("start:"+dateFormt.format(new Date()));
					OutputStream outputStream = new FileOutputStream("C:\\input__.xml");
					
					char[] ch = new char[1024*10];
					OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);
					InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream("C:\\input.xml"), "UTF-8");
					int result = -1;
					while((result = inputStreamReader.read(ch))!=-1){
						outputStreamWriter.write(ch, 0, result);	
					}
					outputStreamWriter.close();
					inputStreamReader.close();
					outputStreamWriter.close();
					System.out.println("end:"+dateFormt.format(new Date()));
				}
				
			} catch (FileNotFoundException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	};
}