Java之DataInputStream和DataOutputStream-用流操作基本数据类型

package FileDemo;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class DataStream {

    /**
     * @param args
     * @throws IOException
     */
    public static void main(String[] args) throws IOException {

        DataOutputStream dos = new DataOutputStream(new FileOutputStream(
                "data.txt"));
        dos.writeInt(2050);
        dos.close();
        DataInputStream dis = new DataInputStream(new FileInputStream(
                "data.txt"));
        int num = dis.readInt();
        System.out.println("num=" + num);
        dis.close();
    }

}