java.io 패키지 실습 - 파일 읽기,쓰기 (2차 스트림)-BufferedInputStream-

파일 읽기 (2차 스트림)

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import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

//파일 읽기2 (2차 스트림으로 선언)

 

public class FileIoEx01_02 {

 

        public static void main(String[] args) {

              

               BufferedInputStream bis = null;

              

               try {

                       //한줄에 2차 스트림으로 선언하기

                       bis = new BufferedInputStream(new FileInputStream ("c:\\dirs\\text.txt") ); 

                      

                       int data = 0;

                       while((data = bis.read()) != -1){           

                              System.out.print((char)data);

                              }

               }catch (FileNotFoundException e) {}

                catch (IOException e) {}

               finally{

                       if(bis != null) try{bis.close();} catch(IOException e){}

               }

              

       

        }

}

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파일 쓰기 (2차 스트림)

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import java.io.BufferedOutputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

//파일 쓰기2 (2차 스트림으로 선언)

 

public class FileIoEx02_02 {

 

        public static void main(String[] args) {

               BufferedOutputStream bos = null;

 

               try {

                       //한줄에 2차 스트림으로 선언하기

                       bos = new BufferedOutputStream(new FileOutputStream("c:\\dirs\\text2.txt", true));

                      

                       bos.write('a');        bos.write('b');        bos.write('c');

                       bos.write('\r'); bos.write('\n');     //

                       bos.write('a');        bos.write('b');        bos.write('c');

                      

               } catch (FileNotFoundException e) {}

                 catch (IOException e) {}

               finally{

                       if(bos != null){

                              try{bos.close();}catch(IOException e){}

                       }

               }

              

        }

}

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