Java中FileWriter类的常用方法说明

public FileWriter(String fileName) throws IOException

public FileWriter(String fileName, boolean append) throws IOException

public FileWriter(File file) throws IOException

public void write( int c):

public void write( char [] cbuf):

public abstract void write( char [] cbuf, int off,  int len):

public void write(String str):

public void write(String str, int off, int len):

public void flush() throws IOException

public void close() throws IOException

package com.itcast.demo4;

import java.io.*;

public class Java_2 {

     public static void main(String args[]) {

         String ShowMes[] = { "在那山的那边海的那边有一群蓝精灵" , "它们活泼又聪明它们调皮又灵敏" , "它们自由自在生活在那绿色的大森林" , "它们善良勇敢相互都欢喜！" };

         try {

             //*********Found********

             FileWriter out = new FileWriter( "test.txt" );

             BufferedWriter outBW = new BufferedWriter(out);

             for ( int i = 0 ; i < ShowMes.length; i++) {

                 outBW.write(ShowMes[i]);

                 outBW.newLine(); //跨平台的换行符

                 //outBW.write("\r\n");//只支持windows系统

             }

             //*********Found********

             outBW.close();

         } catch (Exception e) {

             e.printStackTrace();

         }

         try {

             //*********Found********

             FileReader in = new FileReader( new File( "test.txt" ));

             BufferedReader inBR = new BufferedReader(in);

             String stext = null ;

             int j = 1 ;

             while ((stext = inBR.readLine()) != null ) {

                 System.out.println( "第" + j + "行内容：" + stext);

                 //*********Found********

                 j++;

             }

             inBR.close();

         } catch (Exception e) {

             e.printStackTrace();

         }

     }

}