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Sunday, 17 July 2011
ASP.NET Common Interview Questions and Answers
OOPS Common Interview Questions and Answers
- What is the difference between procedural and object-oriented programs?- a) In procedural program, programming logic follows certain procedures and the instructions are executed one after another. In OOP program, unit of program is object, which is nothing but combination of data and code. b) In procedural program, data is exposed to the whole program whereas in OOPs program, it is accessible with in the object and which in turn assures the security of the code.
- What are Encapsulation, Inheritance and Polymorphism?- Encapsulation is the mechanism that binds together code and data it manipulates and keeps both safe from outside interference and misuse. Inheritance is the process by which one object acquires the properties of another object. Polymorphism is the feature that allows one interface to be used for general class actions.
- What is the difference between Assignment and Initialization?- Assignment can be done as many times as desired whereas initialization can be done only once.
- What is OOPs?- Object oriented programming organizes a program around its data, i. e. , objects and a set of well defined interfaces to that data. An object-oriented program can be characterized as data controlling access to code.
- What are Class, Constructor and Primitive data types?- Class is a template for multiple objects with similar features and it is a blue print for objects. It defines a type of object according to the data the object can hold and the operations the object can perform. Constructor is a special kind of method that determines how an object is initialized when created. Primitive data types are 8 types and they are: byte, short, int, long, float, double, boolean, char.
- What is an Object and how do you allocate memory to it?- Object is an instance of a class and it is a software unit that combines a structured set of data with a set of operations for inspecting and manipulating that data. When an object is created using new operator, memory is allocated to it.
- What is the difference between constructor and method?- Constructor will be automatically invoked when an object is created whereas method has to be called explicitly.
- What are methods and how are they defined?- Methods are functions that operate on instances of classes in which they are defined. Objects can communicate with each other using methods and can call methods in other classes. Method definition has four parts. They are name of the method, type of object or primitive type the method returns, a list of parameters and the body of the method. A method’s signature is a combination of the first three parts mentioned above.
- How many ways can an argument be passed to a subroutine and explain them?- An argument can be passed in two ways. They are passing by value and passing by reference. Passing by value: This method copies the value of an argument into the formal parameter of the subroutine. Passing by reference: In this method, a reference to an argument (not the value of the argument) is passed to the parameter.
- What is the difference between an argument and a parameter?- While defining method, variables passed in the method are called parameters. While using those methods, values passed to those variables are called arguments.
- What are different types of access modifiers?- public: Any thing declared as public can be accessed from anywhere. private: Any thing declared as private can’t be seen outside of its class. protected: Any thing declared as protected can be accessed by classes in the same package and subclasses in the other packages. default modifier : Can be accessed only to classes in the same package.
- What are Transient and Volatile Modifiers?- Transient: The transient modifier applies to variables only and it is not stored as part of its object’s Persistent state. Transient variables are not serialized. Volatile: Volatile modifier applies to variables only and it tells the compiler that the variable modified by volatile can be changed unexpectedly by other parts of the program.
- What is method overloading and method overriding?- Method overloading: When a method in a class having the same method name with different arguments is said to be method overloading. Method overriding : When a method in a class having the same method name with same arguments is said to be method overriding.
- What is difference between overloading and overriding?- a) In overloading, there is a relationship between methods available in the same class whereas in overriding, there is relationship between a superclass method and subclass method. b) Overloading does not block inheritance from the superclass whereas overriding blocks inheritance from the superclass. c) In overloading, separate methods share the same name whereas in overriding, subclass method replaces the superclass. d) Overloading must have different method signatures whereas overriding must have same signature.
- What is meant by Inheritance and what are its advantages?- Inheritance is the process of inheriting all the features from a class. The advantages of inheritance are reusability of code and accessibility of variables and methods of the super class by subclasses.
- What is the difference between this() and super()?- this() can be used to invoke a constructor of the same class whereas super() can be used to invoke a super class constructor.
- What is the difference between superclass and subclass?- A super class is a class that is inherited whereas sub class is a class that does the inheriting.
- What modifiers may be used with top-level class?- public, abstract and final can be used for top-level class.
- What are inner class and anonymous class?- Inner class : classes defined in other classes, including those defined in methods are called inner classes. An inner class can have any accessibility including private. Anonymous class : Anonymous class is a class defined inside a method without a name and is instantiated and declared in the same place and cannot have explicit constructors.
- What is interface and its use?- Interface is similar to a class which may contain method’s signature only but not bodies and it is a formal set of method and constant declarations that must be defined by the class that implements it. Interfaces are useful for: a)Declaring methods that one or more classes are expected to implement b)Capturing similarities between unrelated classes without forcing a class relationship. c)Determining an object’s programming interface without revealing the actual body of the class.
- What is an abstract class?- An abstract class is a class designed with implementation gaps for subclasses to fill in and is deliberately incomplete.
- What is the difference between abstract class and interface?- a) All the methods declared inside an interface are abstract whereas abstract class must have at least one abstract method and others may be concrete or abstract. b) In abstract class, key word abstract must be used for the methods whereas interface we need not use that keyword for the methods. c) Abstract class must have subclasses whereas interface can’t have subclasses.
- Can you have an inner class inside a method and what variables can you access?- Yes, we can have an inner class inside a method and final variables can be accessed.
- What is the difference between Array and vector?- Array is a set of related data type and static whereas vector is a growable array of objects and dynamic.
- What is the difference between exception and error?- The exception class defines mild error conditions that your program encounters. Exceptions can occur when trying to open the file, which does not exist, the network connection is disrupted, operands being manipulated are out of prescribed ranges, the class file you are interested in loading is missing. The error class defines serious error conditions that you should not attempt to recover from. In most cases it is advisable to let the program terminate when such an error is encountered.
- What is the difference between process and thread?- Process is a program in execution whereas thread is a separate path of execution in a program.
- What is multithreading and what are the methods for inter-thread communication and what is the class in which these methods are defined?- Multithreading is the mechanism in which more than one thread run independent of each other within the process. wait (), notify () and notifyAll() methods can be used for inter-thread communication and these methods are in Object class. wait() : When a thread executes a call to wait() method, it surrenders the object lock and enters into a waiting state. notify() or notifyAll() : To remove a thread from the waiting state, some other thread must make a call to notify() or notifyAll() method on the same object.
JAVA Common Interview Questions and Answers
Walkin for Java Freshers in Chennai - 2011 Freshers Walkin - Jobs for Software Freshers in Chennai
Experience: 0 Years
Location: Chennai
Education: B.E/B.Tech/BCA/MCA/B.Sc/M.SC
Functional Area: Application Programming, Maintenance
Job Description :
Working as a Java Developer
Desired Candidate Profile ;
2011 passout Candidates,
should have basic knowledge of Core Java, EJB. With good communication skills, Innovate bent of mind, Analytical and Problem solving skills. Candidates should being with chennai.
Contact Details :
Company Name: SPIRO SOLUTIONS PVT LTD
Website: http://www.spiroit.com
Executive Name: Ms.M.Eshwari
Fresher / Walkin jobs- Designation in All Over India July 2011
resher / Walkin jobs- Designation | Company | Qualification | Location | |
Urgent Requirement for Customer Service Associati... | SDS Infocervices | 12 or gradu.. | kolkata | |
Project Executive-MBA Freshers | Web Development Co.. | MBA Fresher | Chennai | |
Jr. Linux System Administrator | Solution Enterprises | Graduate | Mumbai, Pune | |
WebTech Developers providing free industrial train... | WebTech Developers | MSc / MCA | Pune | |
Work at home / Part time job / Home based job | vegainfoservice | student | india | |
Software Engineer | Phlox Technologies | B-tech,MCA,.. | Hyderabad,chennai,Bangalore | |
Inbound Customer service, blended, Technical, Outb... | Vanquish Infosys | UG/Graduate | Noida | |
Customer Care Executive | Viraj Management C.. | Any Graduat.. | Indore, Mumbai, Bangalore | |
institute for trainig telecom engineer | tech vidhya ( a un.. | any graduat.. | mumbai | |
Associate Software Developers | WebTech Developers | Fresher | Pune | |
Recruitment Consultant/Executive | ACH Management Con.. | Any Graduate | Mumbai | |
SEO Professional | ISOL Systems Pvt. .. | Graduate/po.. | Bikaner | |
English Translators | Prime Focus | X | Bangalore | |
Front Office & Food & Beverage Services | Sidhi Infotech | 10+2 | Bangalore | |
Need Software developer(JAVA/.NET)&Web designers-f... | Immanuel IT Solutions | B.Sc. Compu.. | Chennai | |
Walk-in Joomla Developers with 1+years of Experien... | Make eIT Solutions.. | Any Degree | Chennai | |
Female Field Cousellor | Dos Computer Insti.. | HSC | Badlapur -w | |
Junior Executive - Online Marketing | Dumadu Games | BBM, BA, BC.. | Bangalore | |
Tellecalling/Sales & Marketing | Covenant Infosyste.. | Any Graduat.. | Faridabad | |
Software Programmer | tradeiq | BE/B.Tech/MCA | Bangalore | |
WALK IN INTERVIEWS FOR FRESHERS ON SATURDAY 16th J... | Techgene Solutions | MBA or Any .. | Hyderabad | |
Software Programmer | Agogue Consultancy.. | BE/BTech/MCA | Pune | |
Opening for .Net Programmers | Smabes Solutions | BSC, BCA, B.. | India | |
Assistant Faculty | Bharath Infotech | BSc (Comput.. | Chennai | |
PHP Programmer-6 months exp | IS0-9001-9002 Cert.. | Graduate | Chennai | |
Programmer (.Net) | Apparent Infotech | BCA/MCA/B.S.. | Chennai | |
Urgent Requirement for Software trainers/Engineers... | Immanuel IT Solutions | Any graduate | Chennai | |
Lead Generation for United States | Sunchaser Technolo.. | Under gradu.. | India | |
Opening for Dot Net freshers | i4Technology Solut.. | Bsc, BE/B.T.. | Chennai | |
Business Support-MBA Fresher | US Based Software .. | MBA/BBA Fre.. | Chennai | |
Freshers Needed From 2010/2011 batch | Texsas Technologies | B.E/b.tech,.. | Chennai, Mumbai, Bangalor.. | |
Opening in Leading International BPO | Opening in Leading.. | HSC and Gra.. | Mumbai | |
Job assured Training For ECE /EEE/Electronics/ Fre... | Learn Bench | BE/BTECH | Chennai | |
Openings in Bioinformatics | Alcove LifeSciences | PG in Bioin.. | Hyderabad | |
Subject Matter Expert/Author for Chemistry and Maths | Target Publixcatio.. | Any Graduat.. | Mulund-East, Mumbai | |
Programmer | Apparent Infotech | BCA/MCA/B.S.. | Chennai | |
Fresher-Engineer Trainee-ITIS | ARICH Infotech Pvt.. | BE/BTech/MC.. | Pune,Chennai | |
US- IT Recruitment | Miracle Software S.. | Any Degree .. | Visakhapatnam | |
Electrical and electronics fresher | B.E-Electri.. | Bangalore, Mumbai | ||
Front Office-Fresher | Software Company | Graduate | Chennai | |
Business Development Manager | ICON ART DECO | Graduate | Mumbai | |
IT Recruiter | Vdart | B.SC,Any De.. | Bangalore, Chennai ,Trichy | |
Trainee - Business Analyst | SynapseIndia | BE/B.TEch/M.. | Noida | |
Customer Care Executive | ICM SOLUTIONS PVT LTD | Graduation .. | Chennai | |
Embedded engineer Training cum placement | Learn bench | BE/BTECH | Chennai | |
Accounts Executive (Female Only) | Power Vision | B.Com,M.Com.. | Pune | |
Instructional designers | Azpire Consultancy.. | Any Graduat.. | chennai | |
Busines Development Executive | Client of Sanvels .. | MBA/B.E | Chennai | |
Technial Support dotnet (General Timings) | Payment Gateway Co.. | Graduate | Chennai | |
Indoor Marketing | Susean Infosolutions | PUC, 2nd PU.. | Bangalore | |
Associate Software Engineer | Accenture | B.Tech / BE.. | Bangalore, Chennai, Pune,.. | |
BUSINESS DEVELOPEMENT ASSOCIATES | NDOT Private limited | MBA | Coimbatore | |
Field technicans ( FTs), Tech Support Exec (TSE ) | AIS- Vellore | B.A/B.com/B.. | vellore | |
Junior Processor (Banking Backend Operations) | Leading Bank | Graduate | Chennai | |
Merchandizer | Echidna Software P.. | BA/BSc/BCom.. | Bangalore | |
Job fair | WOLKSWIRE BUISNESS.. | btech | AGRA | |
PHP Software Engineer - Trainee | Enigma Solutions P.. | BE/B.Tech/M.. | Trivandrum, Kerala | |
Branch Banking / Back Office / Client Services Off... | AIIM EduSys Pvt Ltd | Graduate (a.. | Mumbai, Nasik | |
AIRINE JOBS (CABIN CREW) JOB CONTACT (09256002777)... | MNCS | 12TH | 12TH | |
Marketing | K-VAN Solutions Pr.. | MBA, or any.. | Hyderabad, Madhya Pradesh | |
Business development Executive | weshine | BBA MBA mar.. | mumbai | |
sales | pacecon technosys .. | diploma | mumbai | |
HR EXECUTIVE | MOBHERO | MBA | Bangalore | |
Marketing Job in HDFC bank in Noida | BBA | Noida | ||
Game developer | SchoolCountry | Anything | Jaipur | |
Graphic artist / designer | School Country | Graduate in.. | Jaipur | |
Solaris System Administrator(L1) | Indmax IT Services.. | B.Tech - CS.. | Guntur, Vijayawada, Hyder.. | |
Web Developer - Fresher | Vigna Technologies.. | Students fr.. | Chennai | |
VLSI Design Engineers Vacancy | Embedded Technolog.. | BE/BTech El.. | Mumbai | |
Embedded Software Ehgineers Vacancy | Embedded Technolog.. | BE/BTech El.. | Mumbai | |
software programmer | GTT pvt Ltd | BE/BTECH/Ms.. | CHENNAI | |
job in insurance | B Pharma 6 months .. | B Pharma | ahemadabad | |
Software Programmer | Esjaysys Software .. | BE/B.Tech/MCA | Chennai | |
(FRESHERS + EXPERIENCED) Software Developer | Esjaysys Software .. | BE/B.Tech/MCA | chennai | |
Field technicans ( FTs), Tech Support Exec (TSE ) | Ambalal Infinity S.. | B..C.A, B.S.. | Vellore |
Job List
Job List | Job Date |
Mega Off-Campus Drive for Freshers at TIBCO Software India Pvt Ltd | 7/16/2011 |
ASP.Net 3.0 /3.5, C# programming Recruitment Drive at Synechron On 23 & 24 July 2011 | 7/24/2011 |
Jobs for Fresher - Huge Walk-in Drive at CSS Corp On 9th July 2011 | 7/9/2011 |
Mega Job Fair for Freshers at Shardha Group of Institutions On 9th & 10th July 2011 | 7/10/2011 |
Fresher Walk-in Drive at iGATE Patni for Trainee Associate/ Associate - 2009/2010/2011 Batch | 7/9/2011 |
WeP Peripherals Off-Campus for Fresher Software Design Engineer On 2nd July 2011 | 7/2/2011 |
CISCO Systems Walk-in Drive for BE/B.Tech/MCA/ME/M.Tech - 2009/2010 Batch | 7/2/2011 |
Freshers Off-Campus at Sankalp Semiconductor for 2010 / 2011 Passout | 7/2/2011 |
iGATE Fresher Off-Campus for 2009, 2010 or 2011 Graduates | 6/25/2011 |
HCL Off-Campus: Fresher Walk-in Interview On 25th June 2011 | 6/25/2011 |
Freshers Walk-in Drive at SAI Systems International, Inc. (0-1 Year Exp) | 6/23/2011 |
Muti-Industry IT JOB FAIR for Syntel, Amazon, IT Plexus, Prodigy Solution On 18th & 19th Jun, 2011 | 6/19/2011 |
Freshers OFF-CAMPUS at Nucleus Software - BE/B.Tech/MCA/ME/M.Sc 2011 Passout | 6/27/2011 |
MEGA Off-Campus: IBM Freshers for BE / B.Tech / MCA / Any Graduate - 2009/2010/2011 Passout | 6/26/2011 |
JP Morgan Chase Walk-in Drive for Freshers On 8th and 10th June 2011 | 6/10/2011 |
Mega Walkin Drive for Fresher at Spider India for MBA | 6/5/2011 |
IBM Women Special Hiring Drive - Mulitiple Vacancies On 5 June 2011 | 6/5/2011 |
MEGA Walk-in Drive: Cisco Systems for Freshers BE/ME/MTech/MCA | 6/5/2011 |
Mega Walkin Drive for Java J2EE Professionals at FSS On 21st May | 5/21/2011 |
Cognizant Combined Campus Freshers Recruitment Drive - 2010/2011 Passout | 5/30/2011 |
Capgemini Walk-in Interview Drive On 14 May 2011 (1 - 6 Years Exp) | 5/14/2011 |
Capgemini Walk-in Interview Drive On 14 May 2011 (1 - 6 Years Exp) | 4/14/2011 |
Freshers 2011 Campus Recruitment at HUAWEI Technology - BE, BTech | 5/28/2011 |
Multiple Job Vacancies at Ministry of Home Affairs - 20 June 2011 | 6/27/2011 |
UST International Scheduled Weekend Drive for C,C++, Unix | 5/15/2011 |
JB Software Pvt Ltd (www.jbsoftindia.com) Walk-In for Dot Net Professionals, Chennai
J&B Software India is a premier software product development and project implementation house, providing high-end payment system solutions, primarily targeting Banking and Financial Services. J&B Software India is a wholly owned subsidiary of J&B Software, Inc.
J&B Software, Inc., established in 1984 and headquartered in a sprawling campus in Blue Bell, Pennsylvania, USA, is a premier provider of enterprise wide transaction & payment systems solutions and integration services, for multi-channel processors. J&B Software Inc. markets and implements its solutions primarily across North America.
J&B Software delivers market-leading automated payments and transaction processing and management systems to over 165 organizations, including regional and money-center banks, insurance companies and mutual funds, credit card and student loan processors, telecom, utilities, government
Interview Location: Chennai
J&B Software India Pvt Ltd,
6th Floor, Tower1, Rayala Towers, 158,
Mt. Road, Chennai - 600 002
Tel: 91 44 28411342 EXT : 206
We have an immediate opening for :
Dot Net Professionals(Asp.Net/C#.Net,VB.Net) Professionals with knowledge on webservices and remoting
Exp:5-7 yrs of relevant experience
Excellent communication skills
Job Location : Chennai
Salary is not a constraint for the right candidate.
Contact Details: Nithya, Human Resources