What is the use of static in (public static void main string args[])

amrutabhavana

 Profile Answers by amrutabhavana Questions by amrutabhavana

• Sep 4th, 2011

We can use static key word for any method which does not require an object to call, so main method is automatically called by the JVM so it does not require any object it is mentioned as static. We ca...

Suresh

• Aug 6th, 2011

Without creating instance of that class to invoke the main method static keyword is used, by giving the name of the class main method gets invoked.

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a) sleep()
b) join()
c) start()
d) yield()

komalnk

 Profile Answers by komalnk Questions by komalnk

• Mar 1st, 2016

Sleep()

ankush

• Feb 8th, 2016

Sleep() and Yeild() are static.

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laxminarsaiah ragiri

• Dec 27th, 2011

Clone interface is marker interface which doest contains abstract methods. I want to say an empty interface.

Mohan Raja Gadikota

 Profile Answers by Mohan Raja Gadikota Questions by Mohan Raja Gadikota

• May 31st, 2011

Features of an Abstract Class1. Abstract Class cannot be instantiated.2. An Abstract Class must be inherited.3. It may have Concrete Methods.4. It may have Abstract Methods.5. An Abstract Method of an...

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A) EncapsulationB) ClassC) InheritenceD) Polymorphism

Arindam Bera

• Jun 9th, 2016

Polymorphism

Asif Javed

• Mar 25th, 2016

D) Polymorphism

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Everything is an object in Java (Single root hierarchy as everything gets derived from java.lang.Object). Java does not have all the complicated aspects of C++ ( For ex: Pointers, templates, unions, operator overloading, structures etc..) The Java language promoters initially said "No pointers!", but when many programmers questioned how you can work without pointers, the promoters began saying "Restricted...

himanshu sindhwani

• Oct 19th, 2016

No Java is not purely object oriented as it contains primitive data types

Mansi pardesi

• Aug 20th, 2015

Why in Java int have 4 bytes and C++ int have 2 bytes

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A) String[ ] s;B) String [ ]s:C) String[ s]:D) String s[ ]:

Ajay

• Aug 1st, 2019

A, b and d

Manjeet Kumar

• Mar 2nd, 2016

Only (C) option is inCorrect.

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A) ActiveB) PassiveC) BothD) None of the above

Rahul

• Jan 13th, 2021

Passive

myogeshchavan97

 Profile Answers by myogeshchavan97 Questions by myogeshchavan97

• Feb 14th, 2009

When we read e-mail, we are viewing passive data.

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What is dynamic method dispatch?

zeeshan

• Jun 12th, 2012

Hi Friend, In dynamic method dispatch,super class refers to subclass object and implements method overriding. "java Example: class Flower { void which() { System.out.println("A ...

saroj kumar

• Apr 9th, 2012

Hi, The process of assigning sub class object to super class reference variable is called as Dynamic Dispatch. Consider the following classes,

Code
 

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LAXMINARSAIAH RAGIRI

• Dec 27th, 2011

Yes, it is possible for these you should declare it as public.

sivakumar.java

 Profile Answers by sivakumar.java Questions by sivakumar.java

• Jun 12th, 2011

Yes Obviously....

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Vector is unsynchronized wheras ArrayList is synchronized.

nextcome

 Profile Answers by nextcome Questions by nextcome

• Jul 31st, 2010

ArrayList vs Vector1. Not thread-safe - Thread-safe2. Default size  0  - Default size is 103. Faster - Slower4. Belongs to legacy classes - Belongs to Collection framework5. User Iterator (fail-safe) - Enumator (no guarantee)Thanks

jyoti.bhandari

 Profile Answers by jyoti.bhandari Questions by jyoti.bhandari

• Jun 11th, 2009

1. default arraylist size is 0 at initialization and vector is 102. vector is synchronized arraylist not3. vector increase its size double and arraylist half its initial size4. vector comes with legency classes but arraylist not5. vector cms with jdk 1.4 arraylist not 

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A) DependentB) NeutralC) IndependentD) None of the above

sudheer

• Jun 15th, 2012

Architectural neutral

maneesh.ce.2007

 Profile Answers by maneesh.ce.2007 Questions by maneesh.ce.2007

• Dec 18th, 2008

Neutral.....

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A) EncapsulationB) ClassC) InheritenceD) Polymorphism

Kotta Prasanth Kumar

• Jan 13th, 2021

Option c
inheritance

Debo Barshan Modak

• Dec 17th, 2020

Inheritence

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Abstract Classes: Classes which cannot be instantiated. This means one cannot make a object of this class or in other way cannot create object by saying  ClassAbs abs = new ClassAbs(); where ClassAbs is abstract class.Abstarct classes contains have one or more abstarct methods, ie method body only no implementation.Interfaces: These are same as abstract classes only difference is we an only define...

seenthil

• Mar 26th, 2013

1. If you are creating something that provides common functionality to unrelated classes, use an interface.

2. If you are creating something for objects that are closely related in a hierarchy, use an abstract class.

aparna

• Dec 19th, 2011

If you want common functionality(generalization) for some classes go for abstract
If you dont want generalization then go for abstract class

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The if statement is used to select among two alternatives. It uses a boolean expression todecide which alternative should be executed. The switch statement is used to select among multiple alternatives. It uses an int expression to determine which alternativeshould be executed.

Poorvi Pathak

• May 8th, 2018

"If" is a selection statement. If the condition evaluates to true course of action/statement is executed otherwise it is ignored.
"Switch" is also a selection statement. The switch statement test the value of an expression against a list of integer or character constant.

Moamed Rafeek

• Apr 12th, 2018

"If-else" and "switch" both are selection statements. The selection statements, transfer the flow of the program to the particular block of statements based upon whether the condition is "true" or "fa...

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JBUG

• Jan 29th, 2012

The "==" operator can be used to test primitive values for equality, and can also be used to determine if two object references point to the same underlying object. For Java objects, the equals meth...

laxminarsaiah

• Dec 27th, 2011

equals() method is expected to check for the equivalence the contents of the objects. Whereas the == operator is expected to check the actual object instances are same or not."j...

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The null value is not a keyword.

Himanshu chauhan

• May 26th, 2018

False

jimmy514in

 Profile Answers by jimmy514in Questions by jimmy514in

• Jul 4th, 2010

Null is not a keyword in Java.It is a literal and cannot be used anywhereReference: http://java.sun.com/docs/books/tutorial/java/nutsandbolts/_keywords.html

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Tarun Wadhwa

 Profile Answers by Tarun Wadhwa Questions by Tarun Wadhwa

• Sep 8th, 2008

Strings are immutable objects means you cannot modify the instance. For example when you create one instance of string and you are changing the value of string, it does not mean that you are changing ...

srinivaspulla

 Profile Answers by srinivaspulla Questions by srinivaspulla

• Sep 7th, 2008

Java provides the StringBuffer and String classes, and the String class is used to manipulate character strings that cannot be changed. Simply stated, objects of type String are ...

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A) StringB) IntegerC) BooleanD) Character

Gourav Sharma

• Apr 28th, 2023

String

Andy

• Dec 16th, 2021

A) String

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Pradeep

• Apr 20th, 2016

Should contain string[] as argument

anonymous

• Dec 18th, 2015

Public static void main(String args[]) is the signature

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Abhisek

• Dec 23rd, 2014

Hashcode is nothing but Index of the Address of the Object. Hashcode is integer value.which would be automatically generated by JVM. whenever an object is created & address is generated,JVM pick up o...

Michael Wu

• Oct 4th, 2011

Originally hash code is translate memory address to int. I want to propose a question why java designed a hashcode? It is just for distinguish two object?

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