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Java allows objects to initialize themselves when they are created using _________
A) ArgumentsB) ClassesC) ConstructorsD) Parameters
r.praveenkumar
- Aug 6th, 2008
Yes objects can be created only using constructors if we do not provide one compiler will create a default cons for us thus allocating memory for objects we are going to create and the default values ...
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How to run doc file in Java?
sandeep.gurusthale
- Feb 26th, 2010
Here is the correct code for this. Save anywhere your document file it search and open. import java.io.*;public class Example { public static void main (String[] args) throws IOExcep...
anshuman
- Apr 15th, 2007
I have used your source code it opens the word software but it does not open the file it is saying that permission is not therepls provide some help on it
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Explain abt try-catch-finally ?what is the exact use?
drjava72
- Mar 16th, 2010
Try Catch are necessary for checked exceptions and you can use them for unchecked exceptions.Suspecious code is written in try and exception is handled in catch block and the finally block will execute every time weather exception is raised or not.
Vickey
- Nov 28th, 2006
In java ... we often get free errors ... Somtimes ... the error might be in syntax those errors as know as Complication errors ... and the seconf type of errors is Runtime errors ...i.e.. the pr...
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System Class
What is the use of system class?
Thomas John
- Sep 22nd, 2015
The purpose of the System class is to provide access to system resources. It contains accessibility to standard input, standard output, error output streams, current time in milliseconds, terminating the application, etc.
zero10
- Jan 26th, 2010
Well it depends upon you for what purpose do use system class.Say, System.in >> belongs to inputstream interface helps in inputting from the console.whereas, System.out and System.err is used to...
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The methods and variables defined within a class are called members of the class
A) TrueB) False
sneh lata
- Sep 15th, 2007
Truemembers of a class may include methods and variables.They can easily invoked by an object reference.
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In this example class-var = new classname( ); The classname is the name of the class that is being instantiated.
A) TrueB) False
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How do we call two interfaces in one interface?
sujatham
- Jul 28th, 2007
In interface we?can call two?interfaces?by?extending those interfaces with extends clause.
sri
- Dec 12th, 2005
if a interface extends another interface what we call extended interface for exinterface A{}interface B extends A{}what we call A
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In this example class-var = new classname( ); The class name followed by parentheses specifies the _________ for the class
A) VariablesB) ConstructorC) ObjectsD) Memory
Vickey
- Nov 28th, 2006
Constructor
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The variable receiving the value returned by a method must also be compatible with the return type specified for the method.
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A stack stores data using first-in, last-out ordering.
A) TrueB) False
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Stacks are controlled through two operations traditionally called ___ and _____
A) Push and Pull B) Push and PopC) Pop and Pull D) Pop and Peep
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In Java it is possible to define two or more methods within the same class that share the same name, as long as their parameter declarations are different
A) TrueB) False
Vickey
- Nov 28th, 2006
Yes it is True ... In Java we can have to or more classes with the same name but the parameter list should be Different ... This Concept is called Method Overloading or Function Overloading In C++ we have the same Concept too ..
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Through _________ , you can control what parts of a program can access the members of a class
A) EncapsulationB) ClassC) InheritenceD) Polymorphism
supriya ahire
- Mar 23rd, 2006
ans is : Encapsulation Encapsulation is used to hide data or information.
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What is enumeration?
godsgirl
- Jul 29th, 2007
Rabbi i appreciate your help, but do you know what enumeration is when talking about the 9th Amendment?
ramjee
- Nov 2nd, 2006
Enumeration is a legacy class it is same like Iterator i.e.it will add one element at a time the only diff is we cannot delete an element in Enumeration.cheers,Ramee..
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How to implement hibernate
drjava72
- Mar 16th, 2010
Rather creating mapping file try Annotations they are best and they take less time and they are efficient. You can reverse engineer them using net beans.
Arun K Rajput
- Dec 1st, 2006
following things needed1. put hibernate3.jar in project lib2. write hibernate configuration file (ie) hibernate.cfg3. write hibernate mapping file (say) student.hbm.xml4. get hibernate session and begin transaction5 endbye
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In Java, all class objects need not be dynamically allocated
A) TrueB) False
nkamuni
- Dec 19th, 2007
I think it is true. Because, we use initalize some variables which are not dynamic.For eg: int i = 10;
bujji
- Mar 24th, 2006
False
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The new operator dynamically allocates memory for an object
A) TrueB) False
supriya ahire
- Mar 20th, 2006
True, The purpose of new operator is to create a memory for the object dynamically.
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A paramter is a variable defined by a method that receives a value when the method is called.
A) TrueB) FalseExplanation: A argument is a variable defined by a method that receives a value when the method is called.
realneeraj
- Dec 28th, 2005
Well, An argument is what you pass to a function while calling. And parameter is a variable defined by the function to receive that value.
Java Classes Questions
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