Java Java.io.ObjectInputStream.close()用法及代码示例

描述

这个java.io.ObjectInputStream.close()方法关闭输入流。必须调用以释放与流关联的任何资源。

声明

以下是声明java.io.ObjectInputStream.close()方法。

public void close()

参数

NA

返回值

此方法不返回值。

异常

IOException- 如果发生了 I/O 错误。

示例

下面的例子展示了使用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();
      }
   }
}

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.