ObjectInputStream類readUnshared()方法 (ObjectInputStream Class readUnshared() method)

• readUnshared() method is available in java.io package.

  readUnshared()方法在java.io包中可用。

• readUnshared() method is used to read "non-shared" or "unshared" object from the ObjectInputStream.

  readUnshared()方法用于從ObjectInputStream讀取“非共享”或“非共享”對象。

• readUnshared() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  readUnshared()方法是一個非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• readUnshared() method may throw an exception at the time of reading unshared objects.

  readUnshared()方法在讀取非共享對象時可能會引發異常。

  • StreamCorruptedException: This exception may throw when the control information in the stream is not consistent.StreamCorruptedException ：當流中的控制信息不一致時，可能引發此異常。
  • IOException: This exception may throw when getting any input/output error while performing.IOException ：在執行過程中遇到任何輸入/輸出錯誤時，可能引發此異常。
  • ClassNotFoundException: This exception may throw when the serialized object Class could not exist.ClassNotFoundException ：當序列化的對象Class不存在時，可能引發此異常。
  • OptionalDataException: This exception may throw when unexpected primitive data found instead of objects.OptionalDataException ：當發現意外的原始數據而不是對象時，可能引發此異常。

Syntax:

句法：

public Object readUnshared();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is Object, it returns reference to deserialized object.

該方法的返回類型為Object ，它返回對反序列化對象的引用。

Example:

例：

// Java program to demonstrate the example // of Object readUnshared() method of // ObjectInputStreamimport java.io.*; public class ReadUnsharedOfOIS {public static void main(String[] args) throws Exception {Integer in = new Integer(10);// Instantiates ObjectOutputStream , ObjectInputStream // FileInputStream and FileOutputStreamFileOutputStream file_out_stm = new FileOutputStream("D:\\includehelp.txt");ObjectOutputStream obj_out_stm = new ObjectOutputStream(file_out_stm);FileInputStream file_in_stm = new FileInputStream("D:\\includehelp.txt");ObjectInputStream obj_in_stm = new ObjectInputStream(file_in_stm);// By using writeUnshared() method is to write// unshared object to the obj_out_stm streamobj_out_stm.writeUnshared( in );obj_out_stm.flush();// By using readUnshared() method is to read// unshared object and display fieldsObject o = (Object) obj_in_stm.readUnshared();System.out.println("obj_in_stm.readUnshared(): " + o);} }

Output

輸出量

obj_in_stm.readUnshared(): 10

翻譯自: https://www.includehelp.com/java/objectinputstream-readunshared-method-with-example.aspx

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