char型输入输出流

 1 package YiChangchuli;
 2 import java.io.*;
 3 public class TestFile3 {
 4 
 5     public static void main(String[] args) {
 6         // TODO Auto-generated method stub
 7         
 8         try {
 9             FileReader fr=new FileReader("e:\\test.txt");
10             char[] c=new char[200];
11             int i=fr.read(c);
12             String str=new String(c,0,i);
13             System.out.println("读取内容="+str);
14             //fr.close();
15             
16             //写入
17             FileWriter fw=new FileWriter("e:\\test.txt",true);
18             fw.write("\n新追加的内容");
19             fw.close();
20             
21         
22         
23         } catch (Exception e) {
24             // TODO Auto-generated catch block
25             e.printStackTrace();
26         }
27     }
28 
29 }