Java基础IO类之数据流

package IODemo;

import java.io.*;

/*
* 数据流
* 与机器无关的操作 Java的基本数据类型
*
 */
public class DataStreamDemo {

    private static void Read(){
        File file = new File("d:\\test\\test.dat");
        try {
            BufferedInputStream  bis = new BufferedInputStream(new FileInputStream(file));
            DataInputStream dis = new DataInputStream(bis);
            // 注意写的时候先写那个读就要先读，读的数据要按写的顺序
            int num = dis.readInt();
            String b= dis.readUTF();
            System.out.println(b+" "+num);
            dis.close();


        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static  void write(){
        File file = new File("d:\\test\\test.dat");
        try {
            BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
            DataOutputStream dos = new DataOutputStream(bos);
            dos.writeInt(10);
            String sdf = "wangg";
            dos.writeUTF(sdf);
            dos.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
 　　　　write();
        Read();

    }
}