DataStream_操作基本类型数据的流对象

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

public class Test {
    public static void main(String[] args) throws IOException {
        writeData();
        readData();
    }
    public static void readData() throws IOException {
        
        DataInputStream dis = new DataInputStream(new FileInputStream("F:\IO\data.txt"));
        
        String str = dis.readUTF();
        
        System.out.println(str);
    }

    public static void writeData() throws IOException {
        
        DataOutputStream dos = new DataOutputStream(new FileOutputStream("F:\IO\data.txt"));
        
        dos.writeUTF("你好");
        
        dos.close();
    }
}