1 package FileDemo;
2
3 import java.io.DataInputStream;
4 import java.io.DataOutputStream;
5 import java.io.FileInputStream;
6 import java.io.FileOutputStream;
7 import java.io.IOException;
8
9 public class DataStream {
10
11 /**
12 * @param args
13 * @throws IOException
14 */
15 public static void main(String[] args) throws IOException {
16
17 DataOutputStream dos = new DataOutputStream(new FileOutputStream(
18 "data.txt"));
19 dos.writeInt(2050);
20 dos.close();
21 DataInputStream dis = new DataInputStream(new FileInputStream(
22 "data.txt"));
23 int num = dis.readInt();
24 System.out.println("num=" + num);
25 dis.close();
26 }
27
28 }
