1 package syj; 2 import java.io.*; 3 public class syj4 { 4 public static void main(String[] args) { 5 // TODO 自动生成的方法存根 6 File file = new File("data.txt"); 7 String syj = "12345abcdef@#%&*软件工程 "; 8 try { 9 FileWriter t = new FileWriter (file);10 BufferedWriter out = new BufferedWriter (t);11 out.write(syj);12 out.close();13 t.close(); 14 } catch (Exception e) {15 e.printStackTrace();16 } 17 try {18 FileReader fr = new FileReader(file);19 BufferedReader in = new BufferedReader(fr);20 String ss = in.readLine();21 System.out.println("文件中的信息是:"+ ss);22 in.close();23 fr.close();24 }catch (Exception e) {25 e.printStackTrace();26 }27 }28 29 }