Non-final functions in java object class, JAVA Programming

Assignment Help:

clone (), finalize (), toString (), equals (), hashCode () and. The other methods like wait (), getClass (), notifyAll (), notify ()

toString():

 The toString() function given by the java.lang.Object returns a string, which consists of the class name followed by an "@" sign and then unsigned hexadecimal presentation of the hashcode, As Set@162b91. This hexadecimal presentation is not what the users of your class want to see.

 

clone():

 

You have to override the clone() method very judiciously. Implementing a properly working clone method is complex and it is rarely used. You are better off providing some alternative defines of object copying or simply not giving the capability. A better approach is to give a copy constructor or a static factory function in place of a constructor.

 

finalize():

 

Unlike C++ destructors, the finalize() method in Java is unpredictable,  dangerous and usually unnecessary. Use try{} finally{} blocks in Enterprise section. The finalize() method could only be need in rare instances to terminate non-critical native resources or as a safety net.

protected void finalize() throws Throwable {

try{

//finalize subclass state

}

finally {

super.finalize();

}

}

 


Related Discussions:- Non-final functions in java object class

Write down the class electricitysource, Question : (a) Explain the con...

Question : (a) Explain the concept of polymorphism when used in programs using suitable examples of your own. (b) (i) Distinguish between abstract methods and non-abstrac

Develop a camera application, Project Description: I want to build a cam...

Project Description: I want to build a camera application for android. By default android will add metadata for the image, for e.g.  Date, time, resolution, gps tag etc..In this

Implement decision tree algorithm using netbeans, Implement Decision Tree A...

Implement Decision Tree Algorithm using Netbeans (Java) & Microsoft Access 2007. "One Level is enough, output should contains gain of each attribute, the selected attribute and

What is the importance of static variable, What is the importance of static...

What is the importance of static variable? Static variables are class level variables where all objects of the class refer to the similar variable. If one object alters the val

Ejb container security?, EJB elements operate inside a container environmen...

EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are: 1. Identification :

Android app for evaluating of distance, Android app for evaluating of dista...

Android app for evaluating of distance Project Description: The request is to prepare an app for Android. The application needs to run on tablet (7 "or larger) and the layout

Problem, #questionSmugglers are becoming very smart day by day. Now they ha...

#questionSmugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they

Conditional statements in javascript, Very frequently when you write code, ...

Very frequently when you write code, you desire to perform distinct actions for different decisions. You can employ conditional statements in your code to do this. In JavaScript

#tSutherland cohen line clipping algorithm, how do you write the code so th...

how do you write the code so the line will be clipped

Java error handling mechanism, Errors: When a dynamic linking failure or ...

Errors: When a dynamic linking failure or some other "hard" failure in the virtual machine happens, the virtual machine gives an Error. Typical Java programs could not find Error

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd