private static final

private static final

Why there is necessary to make a variable private static final?

View Answers

March 16, 2011 at 1:01 PM

Making a member private, means it's only visible to objects of the same class (unless, of course, expose via a public getter method.

Making it static means that there's only one instance of that particular member variable. This is good since there is no point having more than one instance of a constant.

Making it final, means that it can only be assigned once, alowing the compiler to optimize the bytecode since it is known that the value of that variable is never going to change once assigned.









Related Tutorials/Questions & Answers:
private static final
private static final  Why there is necessary to make a variable private static final
private and final - Java Interview Questions
private and final  what is the difference between private modifier and final modifier in java   Hi Friend, Private modifier indicates... be accessed or instantiated outside. Final modifier indicates
Advertisements
Static final variables - Java Beginners
Xyz{ private static final String name="xyz"; public void displayData...Static final variables  can a static final variable be accessed by a instance (non-static)method?  Hi, static final variable u can
final
final  what does final means in "public static final void main (string args[])" ?   keyword final can be assigned only once. They cannot be modified
Static
Static  Can i know the real time example for Static method and final variables with defenition? Thank you
The final Keyword
to the function of the class. private and static methods... The final Keyword       The final is a keyword. This is similar to const keyword in other
STATIC
STATIC  WHAT IS STATIC BLOCK?EXPLAIN , AND WHAT IS THE DIFFERENCE BETWEEN STATIC BLOCK AND STATIC METHOD?   A STATIC block is automatically... between static block and static method: static block will execute when ever
final keyword
final keyword  why is final keyword used in java
Final Methods - Java Tutorials
as static, final and public are known as named constants. Given below a example of named constant : public class Maths{ public static final double x...The final Keyword in Java In Java, final keyword is applied in various context
static
Static Concept  in what are all the situation we may use static...,then use static blocks and without creation of object we need to perform some task,then go for static methods. If we want variables those values will not be changed
static
static  what r the main uses of static in java   Hi Friend, The Static means that a certain object/variable is resident in memory and accessed each time an instance of a class, an object, is created. When static
Final Keyword
Final Keyword  hello, What is final?   hiiADS_TO_REPLACE_1 In case of class if we use final then this class can not be extended or final class may not be subclassed. A final method can't be overridden when its class
private and protected
private and protected  what is diffrence between private and protected
static
static  What is the exact need of declaring a variable as static?   A static variable is a variable who's single copy in memory is shared by all objects,so any modifications to the static variable will modify it's value
private method
private method  how can define private method in a class and using...; return(size); } } public class useOfthisoperator { public static void main...){ this.length=l; this.breadth=b; } private int calculate
final variable
final variable  Please give some easiest and understanding example program for final variable
static
redeclare static variable in the inherited class  can we redeclare static variable in the inherited class like this: public class StaticClass1 { class StaticClass1{ static int noOfInstances; StaticClass1
private constructor
private constructor  can we extend from a class which is having private constuctor
private method
private method  how can define private method in a class and using...; return(size); } } public class useOfthisoperator { public static void main...; } } public class useOfthisoperator { public static void main(String args
final grade
final grade  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point...?s final grade from 50-100. Evaluate the Final grade and display the Point
Java final keyword
Java final keyword The final is a very important keyword in java, which... with the name "Final" in a Java program. We can have final methods, final classes, final data members, final local variables and final parameters. When
Access Modifier
to change the visibility (public, protected, default, private) and other modifiers (final, static, synchronized) of Java classes, interfaces, methods
Final method in java
FinalDemo { final static int a=10; public static void main(String args...Final method in java In this section we will learn about Final method in java.... If final is used with method that method will not be overridden in subclass, if final
What is final class?
What is final class?  Hi, What is final class? thanks   Hi, A final class is not be saubclassed. A final method can't be overridden when its class is inherited. You can't change value of a final variable
Java private constructor
Java private constructor  what is private constructor?what are the uses of writing private constructor in our program
Private Cloud Hosting
Private Cloud Hosting  Hi, What is Private Cloud Hosting? What are the benefits of Private Cloud Hosting? Thanks
Java final Keyword Example
() { ...... } public static final void methodName2...() { ...... } public static final void methodName2... they are declared. Likewise, the blank final static variable must be assigned inside
Java Final Variable
Java Final Variable  I have some confusion --Final variable has single copy for each object so can we access final variable through class name,or it is necessary to create object for accessing final variable
changing final Boolean value in SwingUtilities.invokeLater()
static boolean doCommit() { final boolean success = true...changing final Boolean value in SwingUtilities.invokeLater()  Hi, I have a problem with setting final Boolean value in second time
Static
an instance of a class. Static methods are implicitly final method, since overriding... final. However, a static method can't be overridden by a nonstatic method. Or we... Static       Static
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display... input a student?s final grade from 50-100. Evaluate the Final grade and display
Private variable of class
Private variable of class  Hi..... What keyword allows you to refer to private variables of a class in flex? Please give me an example for that Thanks  Ans: private keyword and this keyword
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point Equivalent based on the table below. Indicate also the remarks
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point Equivalent based on the table below. Indicate also the remarks
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point Equivalent based on the table below. Indicate also the remarks
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point Equivalent based on the table below. Indicate also the remarks
compute the final grades
compute the final grades  C. Write a JavaScript program that would input a student?s final grade from 50-100. Evaluate the Final grade and display the Point Equivalent based on the table below. Indicate also the remarks
Final Key Word in Java
Example- private final int j; // Declaring Blank final j = 5... .style1 { text-align: center; } Final key word in java In java final is a key word used in several different contexts. It is used before
servlet as final - JSP-Servlet
servlet as final  whether we can declare final for a servlet or not? and give the reason
Maven Repository/Dependency: s3-wagon-private | s3-wagon-private
Maven Repository/Dependency of Group ID s3-wagon-private and Artifact ID s3-wagon-private. Latest version of s3-wagon-private:s3-wagon-private dependencies. # Version Release Date You can
Java final
Java final      ... entity which makes it unchangeable later. We can have final methods, final classes, final data members, final local variables and final parameters. 1
udacity secure and private ai
udacity secure and private ai  Hi, I am beginner in Data Science... secure and private ai Try to provide me good examples or tutorials links so that I can learn the topic "udacity secure and private ai". Also tell me
Can a abstract class be declared final?
Can a abstract class be declared final?   Hi, Can a abstract class be declared final? Thanks
Final Project - Java Beginners
Final Project  The importance of a graphical user interface..., but it is suggested that you begin working on the final project assignment in Week 5, which... the lectures, Quick Test Programs, and Lab assignments will prepare you for the final
Java Final Project - Java Beginners
Java Final Project  I am having a real hard time with this java assignment. Any help or tips will be great!!! This is the requirements: Final... final project. This is your opportunity to show off your skills! Overall
Can a main method be declared final?
Can a main method be declared final?   Hi, Can a main method be declared final? Thanks   Hi, Yes we can. The final method can be declare as follows: public final String convertCurrency() The final method can't
ModuleNotFoundError: No module named 'Outliers-final'
ModuleNotFoundError: No module named 'Outliers-final'  Hi, My... named 'Outliers-final' How to remove the ModuleNotFoundError: No module named 'Outliers-final' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'spriteutil-final'
ModuleNotFoundError: No module named 'spriteutil-final'  Hi, My... named 'spriteutil-final' How to remove the ModuleNotFoundError: No module named 'spriteutil-final' error? Thanks   Hi, In your
ModuleNotFoundError: No module named 'Final_Project'
ModuleNotFoundError: No module named 'Final_Project'  Hi, My... 'Final_Project' How to remove the ModuleNotFoundError: No module named 'Final_Project' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'Topsis-final'
ModuleNotFoundError: No module named 'Topsis-final'  Hi, My Python... 'Topsis-final' How to remove the ModuleNotFoundError: No module named 'Topsis-final' error? Thanks   Hi, In your python

Ads