ObjectStreamField類的getOffset()方法 (ObjectStreamField Class getOffset() method)

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

  getOffset()方法在java.io包中可用。

• getOffset() method is used to get the offset of this ObjectStreamField field.

  getOffset()方法用于獲取此ObjectStreamField字段的偏移量。

• getOffset() 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.

  getOffset()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。

• getOffset() method does not throw an exception at the time of returning offset.

  返回偏移量時， getOffset()方法不會引發異常。

Syntax:

句法：

public int getOffset();

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 int, it returns the offset of this ObjectStreamField.

方法的返回類型為int ，它返回此ObjectStreamField的偏移量。

Example:

例：

// Java program to demonstrate the example // of int getOffset() method // of ObjectStreamFieldimport java.io.*; import java.util.*;public class GetOffSetOfOSF {public static void main(String[] args) {// Instantiates ObjectStreamClass for CalendarObjectStreamClass o_sc = ObjectStreamClass.lookup(Calendar.class);// By using getField() method is to get the field// value from Calendar ObjectStreamField field1 = o_sc.getField("isTimeSet");ObjectStreamField field2 = o_sc.getField("isSet");// By using getOffset() method is to return// the offset of the fieldint field1_offset = field1.getOffset();System.out.println("field1.getOffset(): " + field1_offset);int field2_offset = field2.getOffset();System.out.println("field2.getOffset(): " + field2_offset);} }

Output

輸出量

field1.getOffset(): 5 field2.getOffset(): 1

翻譯自: https://www.includehelp.com/java/objectstreamfield-getoffset-method-with-example.aspx

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