Java.lang.Object.finalize() Method


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Description

The java.lang.Object.finalize() is called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the finalize method to dispose of system resources or to perform other cleanup.

Declaration

Following is the declaration for java.lang.Object.finalize() method

protected void finalize()

Parameters

  • NA

Return Value

This method does not return a value.

Exception

  • Throwable -- the Exception raised by this method

Example

The following example shows the usage of lang.Object.finalize() method.

package com.tutorialspoint;

import java.util.*;

public class ObjectDemo extends GregorianCalendar {

   public static void main(String[] args) {
   try {
   // create a new ObjectDemo object
   ObjectDemo cal = new ObjectDemo();

   // print current time
   System.out.println("" + cal.getTime());

   // finalize cal
   System.out.println("Finalizing...");
   cal.finalize();
   System.out.println("Finalized.");

   } catch (Throwable ex) {
   ex.printStackTrace();
   }

   }
}

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

Sat Sep 22 00:27:21 EEST 2012
Finalizing...
Finalized.

java_lang_object.htm

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