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

Define object lock and which kinds of object have locks, What do you think ...

What do you think about an object's lock and which kinds of object's have locks?

Program to abstract syntax tree constructed, Please submit your answers    ...

Please submit your answers     In this homework, we are going to generate Java Virtual Machine codes by processing the abstract syntax tree constructed from the parsing process

Explain about the performance aspects of core java, Performance of interpre...

Performance of interpreted byte codes is sufficient but it can be improved much more than that. Byte codes are changed into machine language within no time, this speed of implement

I want to copy an iphone app with some changes, I want to copy an iphone ap...

I want to copy an iphone app with some changes Project Description: I want to copy an iphone app with some changes i need the best programmer to do this for me Skills r

Explain the ? operator in java, Explain The ?  operator in Java ? The...

Explain The ?  operator in Java ? The value of a variable frequent depends on whether a particular boolean expression is or is not true and on nothing else. For example one ge

What is a final modifier? illustrate other java modifiers?, A final class w...

A final class will not be extended i.e. A final method cannot be overridden when its class is added. You can't modify value of a final variable.

Loop, write a program for loop

write a program for loop

What is meant by semantic error, What is meant by semantic error? Occur...

What is meant by semantic error? Occur while a statement executes and has an effect not intended through the programmer and Frequently times occur only in unusual & infrequent

Define the life cycle methods of a servlet? , The Web container is used for...

The Web container is used for managing the servlet's life cycle. The Web container produces an instance of the servlet and then the container invokes the init() function. At the co

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