Bufferread有readline()使得字符输入更加方便

 1 package TomTexts;
 2 import java.io.*;
 3 public class TomTexts_33 {
 4 
 5     public static void main(String[] args)
 6     {    String str1;
 7         char ch1;
 8         int n;
 9         try{
10             File mytxt=new File("read.txt");
11             RandomAccessFile ra=new RandomAccessFile(mytxt,"rw");
12             ra.write("This is the first sentence".getBytes());
13             ra.writeChar(‘\n‘);
14             ra.write("Java Program Design".getBytes());
15             ra.writeChar(‘\n‘);
16             ra.seek(0);
17             str1=ra.readLine();
18             System.out.println(str1);
19             ra.seek(18);
20             System.out.println(ra.readLine());
21             ra.close();
22         }
23 catch(IOException e)
24         {
25             System.out.println(e.toString());
26         }
27     }
28 
29 
30 }