ObjectOutputStream.PutField putFields void flush 08-protected Object replaceObject(Object obj) 描述 所述java.io.ObjectOutputStream.flush()方法刷新流。这将写入任何缓冲的输出字节并刷新到底层流。 声明 以下是java.io.ObjectOutputStream.flush()方法的声明。 public void flush() 参数 NA 返回值 此方法不返回值。 异常 IOException - 如果发生I / O错误。 实例 以下示例显示了java.io.ObjectOutputStream.flush()方法的用法。 package com.tutorialspoint; import java.io.*; public class ObjectOutputStreamDemo { public static void main(String[] args) { int i = 319874; try { // create a new file with an ObjectOutputStream FileOutputStream out = new FileOutputStream("test.txt"); ObjectOutputStream oout = new ObjectOutputStream(out); // write something in the file oout.writeInt(i); oout.writeInt(1653984); // flush the stream oout.flush(); // close the stream oout.close(); // create an ObjectInputStream for the file we created before ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt")); // read and print an int System.out.println("" + ois.readInt()); // read and print an int System.out.println("" + ois.readInt()); } catch (Exception ex) { ex.printStackTrace(); } } } 让我们编译并运行上面的程序,这将产生以下结果 319874 1653984 void flush 08-protected Object replaceObject(Object obj)