Java Java.io.ObjectInputStream.close()用法及代碼示例

描述

這個java.io.ObjectInputStream.close()方法關閉輸入流。必須調用以釋放與流關聯的任何資源。

聲明

以下是聲明java.io.ObjectInputStream.close()方法。

public void close()

參數

NA

返回值

此方法不返回值。

異常

IOException- 如果發生了 I/O 錯誤。

示例

下麵的例子展示了使用java.io.ObjectInputStream.close()方法。

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();
      }
   }
}

讓我們編譯並運行上麵的程序，這將產生以下結果——

Hello World
Closing Stream...
Stream Closed.