ObjectOutputStream類reset()方法 (ObjectOutputStream Class reset() method)

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

  reset()方法在java.io包中可用。

• reset() method is used to reset this stream. It reset the stream to the position marked most recently.

  reset()方法用于重置此流。 它將流重置到最近標記的位置。

• reset() 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.

  reset()方法是一種非靜態方法，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。

• reset() method may throw an exception at the time of resetting the stream.

  reset()方法在重置流時可能會引發異常。

  IOException: This exception may throw when getting any input/output error while writing to the output stream.

  IOException ：在寫入輸出流時遇到任何輸入/輸出錯誤時，可能引發此異常。

Syntax:

句法：

    public void reset();

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 this method is void, it returns nothing.

此方法的返回類型為void ，不返回任何內容。

Example:

例：

// Java program to demonstrate the example 
// of void reset() method of ObjectOutputStream
import java.io.*;
public class ResetOfOOS {
public static void main(String[] args) throws Exception {
// Instantiates ObjectOutputStream , ObjectInputStream 
// FileInputStream and FileOutputStream
FileOutputStream 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 writeByte() method is to
// write byte to the stream		
obj_out_stm.writeByte(65);
// By using reset() method is to
// reset the stream 
obj_out_stm.reset();
// Write another bytes to the
// stream
obj_out_stm.writeByte(66);
obj_out_stm.writeByte(67);
// By using flush() method is to
// flush the stream immediately
System.out.println("Stream Flushed...");
obj_out_stm.flush();
// By using readByte() method is to 
// read the byte and convert it into
// char
for (int i = 0; i < 3; ++i) {
char ch = (char) obj_in_stm.readByte();
System.out.println("ch: " + ch + " ");
}
// By using close() method is to 
// close all the streams 
System.out.println("Stream Shutdown... ");
file_in_stm.close();
file_out_stm.close();
obj_in_stm.close();
obj_out_stm.close();
}
}

Output

輸出量

Stream Flushed...
ch: A 
ch: B 
ch: C 
Stream Shutdown... 

翻譯自: https://www.includehelp.com/java/objectoutputstream-reset-method-with-example.aspx