IO流 - 十七、操作基本数据类型的流对象 - DataStream

DataInputStream与DataOutputStream

public class DataStream {

    public static void main(String[] args) throws IOException {

        writeData();
        readData();

    }

    private static void readData() throws IOException {
        DataInputStream dis = new DataInputStream(new FileInputStream("abc.txt"));
        String str = dis.readUTF();
        System.out.println(str);
        dis.close();
    }

    private static void writeData() throws IOException {
        DataOutputStream dos = new DataOutputStream(new FileOutputStream("abc.txt"));
        dos.writeUTF("你好");
        dos.close();
    }

}