Java I/O - 如何将float写入文件

import java.io.DataOutputStream;
import java.io.FileOutputStream;

public class Main {

  public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("C:/WriteFloat.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    float f = 5.314f;
    dos.writeFloat(f);
    dos.close();
  }
}