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If there are more than one main method in a program, then which main method will be called.
what will be the output
class A
{
public static void main(String args[])
{
System.out.println("Hi friend");
}
}
class Test
{
public static void main(String args[])
{
System.out.println(" How are you");
}
}
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What are the differences between C++ and Java
meSubhadip
- Jul 20th, 2009
The main differences are:?Java does not support typedefs, defines, or a preprocessorJava supports classes, but does not support structures or unionsJava does not support multiple inheritanceJava does...
lalitsonawane27
- Feb 7th, 2009
C++ is not a platform independent language while Java is platform independent language.
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Does JVM maintain a cache by itself? Does the JVM allocate objects in heap? Is this the OS heap or the heap maintained by the JVM? Why
ch.ramachandrakumar
- Nov 16th, 2007
Whenever the object is created by the JVM, the object is allocated in the free?space called heap. The object reference placed in the frame, which is?the smallest part in the stack. (stack is built up?of many smallest frames). (frame is the smallest memory in the stack).
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What happens if public static void main(){} is made protected?
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Editorial / Best Answer
Answered by: Sushil Jain
- Nov 21st, 2007
You will be able to compile but it will through a run time error saying "main method not public".
AA
- Apr 22nd, 2012
It will compile but gives error at run time......
divya_mini4u
- Sep 21st, 2010
The complier will throw error that there is no main()? method. main() should be public always please note.
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Find the Output
class A{ public static void main(String[] a){ System.out.print(String.valueOf(1)+String.valueOf(2)); String s1="s1"; String s2=s1.toString(); System.out.print(","+(s1==s2)); }}
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What are the differences between EJB and Java beans
naresh17201
- Jul 14th, 2010
1. Java beans live in a single local JVM (address spaces) and can be either visual or non-visualEJB are non-visual distributable components, which can live across multiple JVMs2. Java beans designed t...
aleemkh
- Jul 30th, 2008
JavaBeans are just regular class files. They have get and set methods only. They are not controlled by separate EJB server like JBOSS etc, They can easily work on JVM itself and they dont require any ...
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How are memory leaks possible in Java
sampra
- Mar 13th, 2012
When we have object in momory and that object is not gets called at runtime.this is memory leckage
bikash
- Jul 20th, 2011
Improper handling of pointers leads to memory leaks and reliability issues.
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What is difference between instance and object.?what are the all difference between interface and abstract class?
heena
- Feb 15th, 2012
Object is a instance of a class. Instance is the occurence of the object of class which defines its state and behavior.
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What is difference between runnable and thread ?why we use static class
AMIT GURJAR
- Sep 21st, 2012
Sir please tell me that when a thread never return desired result then why we use it?
prabakaran29
- Aug 19th, 2012
Thread class can be extend only one class where as we using runnable interface can be implement many classes.so runnable interface is the best to implement the block of code
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What will be the result and why
int i=10;i=i++;System.out.println(i);
jawaharl0207
- Nov 30th, 2009
11, because even it is post increment, it will increment by 1 when it is going to reach println() statment, for the first statement(i++;) it wont increment, after completing the execution of this method i incremented by 1 and prints the result.
sujithkthomas
- Nov 12th, 2009
Yes this is similar totemp = i;i = i+1;i = temp;It will restore the value 10 since post increment. If its pre-increment last assignment will be i = temp+1
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JVM is platform independent/dependent? why?
which one is faster in execution Array List or Array? why?
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Can we declare multiple main() methods in multiple classes.ie can we have each main method in its class in our program?
r.praveenkumar
- Aug 6th, 2008
Yes I tested this we can have main method in two different classes this will not give error and we should save that doc with the class name which has the main we want to be executed first and inside t...
vinaymudgil007
- Jun 3rd, 2008
Yes this is possible...... but within a single file only one class can be declared puiblic!!!!and whichever class you run, that class's main() mentod would be called.......vinny
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What is MVC architecture
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Answered by: Mitchel K
- Jun 27th, 2005
A design pattern describes a proven solution to a recurring design problem, placing particular emphasis on the context and forces surrounding the problem, and the consequences and impact of the solution.
There are many good reasons to use design patterns. Here are three:
1) They are proven. You tap the experience, knowledge and insights of developers who have used these patterns successfully in their own work.
2) They are reusable. When a problem recurs, you don't have to invent a new solution; you follow the pattern and adapt it as necessary.
3) They are expressive. Design patterns provide a common vocabulary of solutions, which you can use to express larger solutions succinctly.
The goal of the MVC design pattern is to separate the application object (model) from the way it is represented to the user (view) from the way in which the user controls it (controller).
The MVC architecture has the following benefits:
1) Multiple views using the same model: The separation of model and view allows multiple views to use the same enterprise model. Consequently, an enterprise application's model components are easier to implement, test, and maintain, since all access to the model goes through these components.
2) Easier support for new types of clients: To support a new type of client, you simply write a view and controller for it and wire them into the existing enterprise model.
3) Clarity of design: By glancing at the model's public method list, it should be easy to understand how to control the model's behavior. When designing the application, this trait makes the entire program easier to implement and maintain.
4) Efficient modularity: of the design allows any of the components to be swapped in and out as the user or programmer desires - even the model! Changes to one aspect of the program aren't coupled to other aspects, eliminating many nasty debugging situations. Also, development of the various components can progress in parallel, once the interface between the components is clearly defined.
5) Ease of growth: Controllers and views can grow as the model grows; and older versions of the views and controllers can still be used as long as a common interface is maintained.
6) Distributable: With a couple of proxies one can easily distribute any MVC application by only altering the startup method of the application.yura
- Dec 2nd, 2015
Everyone explained what is MVC... This is outcome of one more design pattern called "separation of concerns", which means a "view" should only handle rendering logic of the model and should not be co...
Anil Nivargi
- Jun 26th, 2014
The MVC consists of three kinds of Objects i.e Model,View and Controller. Lets start explaining one by one. 1) Model- It handles data processing and database works part. Model processes event...
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Why java is not 100% object oriented language??
i have not ..asked in TCS interview ..if any one have plz answer me on er.anuj.mittal@gmail.com
Core Java Interview Questions
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