//字节流 import java.io.*; public class testchaer { public static void main(String args[]) { FileReader fr=null; FileWriter fw=null; try { fr=new FileReader("C:/Users/Administrator/Desktop/xuexi/jiankongjiao.py"); fw=new FileWriter("C:/Users/Administrator/Desktop/xuexi/xuexi11.txt"); char [] buffer=new char[100]; while (true) { int tem=fr.read(buffer, 0, buffer.length); if (tem==-1){ break; } fw.write(buffer,0,tem); } } catch (Exception e) { System.out.println(e); } finally { try { fr.close(); fw.close(); } catch (Exception e2) { // TODO: handle exception } } } }
//字符流 import java.io.*; public class inpur { public static void main(String args[]) { FileInputStream fis=null; FileOutputStream fos=null; try{ fis=new FileInputStream("C:/Users/Administrator/Desktop/xuexi/jiankongjiao.py"); fos= new FileOutputStream("C:/Users/Administrator/Desktop/xuexi/xuexi2.txt"); byte [] buffer=new byte[100]; while (true){ int temp=fis.read(buffer,0,buffer.length); if(temp==-1){ break; } fos.write(buffer,0,temp); String stri=new String(buffer); //调用string对象的tim方法,将会将string的收尾的空格和空字符串 stri=stri.trim(); System.out.println(stri); } } catch (Exception e) { // TODO: handle exception System.out.println(e); } finally{ try { fis.close(); fos.close(); } catch (Exception e) { System.out.println(e); } } } }
一行一行的读了,
package ifwh; import java.io.*; public class teatsjaa { public static void main(String agrs[]) { FileReader fileReader=null; BufferedReader bufferedWriter=null; try { fileReader=new FileReader("C:/Users/Administrator/Desktop/xuexi/jiankongjiao.py"); bufferedWriter =new BufferedReader(fileReader); String line=null; while (true) { line=bufferedWriter.readLine(); if (line==null){ break; } System.out.println(line); } } catch (Exception e) { // TODO: handle exception System.out.println(e); }finally { try { fileReader.close(); bufferedWriter.close(); } catch (Exception e2) { // TODO: handle exception System.out.println(e2); } } } }