Java-6.12上机任务 

 1 package work;
 2 
 3 import java.io.BufferedWriter;
 4 import java.io.File;
 5 import java.io.FileWriter;
 6 import java.io.IOException;
 7 
 8 public class OutputData {
 9     public OutputData(String str)
10     {
11         File f = new File("data.txt");
12         try {
13             BufferedWriter bw = new BufferedWriter(new FileWriter(f));
14             bw.write(str);
15             bw.close();
16         } catch (IOException e) {
17             // TODO 自动生成的 catch 块
18             e.printStackTrace();
19         }
20     }
21     public static void main(String[] args) {
22         String str = "12345abcdef@#%&*软件工程";
23         new OutputData(str);
24 
25     }
26 
27 }
 1 package work;
 2 
 3 import java.io.BufferedReader;
 4 import java.io.File;
 5 import java.io.FileNotFoundException;
 6 import java.io.FileReader;
 7 import java.io.IOException;
 8 
 9 public class InputData {
10     public InputData()
11     {
12         File f = new File("data.txt");
13             try {
14                 BufferedReader br = new BufferedReader(new FileReader(f));
15                 String str = br.readLine();
16                 System.out.println(str);
17                 br.close();
18             } catch (FileNotFoundException e) {
19                 // TODO 自动生成的 catch 块
20                 e.printStackTrace();
21             } catch (IOException e) {
22                 // TODO 自动生成的 catch 块
23                 e.printStackTrace();
24             }    
25         
26         
27     }
28     public static void main(String[] args) {
29         new InputData();
30 
31     }
32 
33 }

 

posted @ 2019-06-12 15:04  oops_w  阅读(207)  评论(0)    收藏  举报