Java.io.ObjectStreamField.getOffset() Method

Description

The java.io.ObjectStreamField.getOffset() method gets offset of field within instance data.

Declaration

Following is the declaration for java.io.ObjectStreamField.getOffset() method

public int getOffset()

Parameters

• NA

Return Value

This method returns the offset of this field

Exception

• NA

Example

The following example shows the usage of java.io.ObjectStreamField.getOffset() method.

package com.tutorialspoint;

import java.io.*;
import java.util.Calendar;

public class ObjectStreamFieldDemo {

   public static void main(String[] args) {

      // create a new object stream class for Integers
      ObjectStreamClass osc = ObjectStreamClass.lookup(Integer.class);

      // get the field value from Integer class
      ObjectStreamField field = osc.getField("value");

      // get the offset of the field
      System.out.println("" + field.getOffset());

      // create a new object stream class for calendar
      ObjectStreamClass osc2 = ObjectStreamClass.lookup(Calendar.class);

      // get the field value from Calendar class
      ObjectStreamField field2 = osc2.getField("lenient");

      // get the offset of the field2
      System.out.println("" + field2.getOffset());

   }
}

Let us compile and run the above program, this will produce the following result:

0
6