1 

package com.io.test;

 2 

 3 

import java.io.BufferedReader;

 4 

import java.io.FileNotFoundException;

 5 

import java.io.FileOutputStream;

 6 

import java.io.FileWriter;

 7 

import java.io.IOException;

 8 

import java.io.InputStreamReader;

 9 

import java.io.PrintStream;

10 

import java.io.PrintWriter;

11 

import java.util.Date;

12 

13 

import org.junit.Test;

14 

15 

/**

16 

 * 打印字节

17 

 * 

@author

 chengjj

18 

 *

19 

 

*/

20 

public 

class TestPrintStreamAndPrinter {

21     @Test

22     

public 

void test() {

23         

try {

24             FileOutputStream os = 

new FileOutputStream("E:/1.txt");

25             PrintStream ps = 

new PrintStream(os);

26             

if (ps != 

null) {

27                 System.setOut(ps);

28             }

29             

int ln = 0;

30             

for (

char i = 0; i < 65536; i++) {

31                 System.out.print(i + "");

32                 

if ((ln ++) % 100 == 0) {

33                     System.out.println();

34                 }

35             }

36         } 

catch (FileNotFoundException e) {

37             e.printStackTrace();

38         }

39     }

40     

41     @Test

42     

public 

void test1(){

43         

try {

44             BufferedReader reader = 

new BufferedReader(

new InputStreamReader(System.in));

45             FileWriter writer = 

new FileWriter("E:/logs.log",

true);

46             PrintWriter log = 

new PrintWriter(writer);

47             String s = reader.readLine();

48             

while(s != 

null){

49                 

if(s.equalsIgnoreCase("exit"))

50                     

break;

51                 System.out.println(s);

52                 log.println(s);

53                 log.println(

new Date());

54                 log.println("-------------------------------------------");

55                 log.flush();

//

自动带flush功能，不过写上也没有什么

56 

                s = reader.readLine();

57             }

58             reader.close();

59             log.close();

60             

61         } 

catch (IOException e) {

62             e.printStackTrace();

63         }

64         

65         

66     }

67     

68     

69 }