Java.io.ObjectStreamClass.getSerialVersionUID() Method

Description

The java.io.ObjectStreamClass.getSerialVersionUID() method returns the serialVersionUID for this class. The serialVersionUID defines a set of classes all with the same name that have evolved from a common root class and agree to be serialized and deserialized using a common format. NonSerializable classes have a serialVersionUID of 0L.

Declaration

Following is the declaration for java.io.ObjectStreamClass.getSerialVersionUID() method

public long getSerialVersionUID()

Parameters

• NA

Return Value

This method returns the SUID of the class described by this descriptor

Exception

• NA

Example

The following example shows the usage of java.io.ObjectStreamClass.getSerialVersionUID() method.

package com.tutorialspoint;

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

public class ObjectStreamClassDemo {

   public static void main(String[] args) {

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

      // get the serial for Integers
      System.out.println("" + osc.getSerialVersionUID());

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

      // get the serial for Calendar
      System.out.println("" + osc2.getSerialVersionUID());
   }
}

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

1360826667806852920
-1807547505821590642