void close int available void defaultReadObject 描述 所述java.io.ObjectInputStream.close()方法关闭的输入流。必须调用以释放与流关联的任何资源。 声明 以下是java.io.ObjectInputStream.close()方法的声明。 public void close() 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.ObjectInputStream.close()方法的用法。 package com.tutorialspoint; import java.io.*; public class ObjectInputStreamDemo { public static void main(String[] args) { 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.writeUTF("Hello World"); oout.flush(); // create an ObjectInputStream for the file we created before ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt")); // read from the stream for (int i = 0; i < ois.available();) { System.out.print("" + (char) ois.read()); } // change line System.out.println(); // close the stream System.out.println("Closing Stream..."); ois.close(); System.out.println("Stream Closed."); } 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 Hello World Closing Stream... Stream Closed. int available void defaultReadObject