OOPS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOPS Interview Questions

Questions Answers Views Company eMail

WILL I GET A guaranteed JOB AFTER DOING bsc()IT) and GNIIT from an NIIT CENTRE??

Biocon, MIT, NIIT,

21 37872

In multilevel inheritance constructors will be executed from the .... class to ... class

ABCO, TCS,

2 15874

write a program using c++ to implement single contiguous memory mangement techniques.display the content of the main memory after yhe allocation of jobs and percentage of the wastage of the main memory

3275

You attempt to query the data base with this command: SELECT name, salary FROM employee WHERE salary=(SELECT salary FROM employee WHERE last name='Wagner' OR dept no=233) Choose most appropriate option from the following: 1)Sub-queries are not allowed in the where clause. 2)a multiple row sub-query used with a single row comparison operator. 3)a single row query is used with a multiple row comparison operator.

Zycus Infotech,

10 18038

write a function that takes an integer array as an input and finds the largest number in the array. You can not sort array or use any API or searching needs?

IBMS, Zycus Infotech,

2 13637

why c++ is a highlevel language

Satyam, Tech Mahindra,

3 7582

Whatis the difference between oop and object based language

3 6749

whats the difference between c and c++

Syntel,

7 10689

Program to check whether a word is the first word of the sentence.

1 4025

Program to check whether a word is in all capital letters

1 5207

Program to check whether a word starts with a capital letter or not.

Infosys,

1 5287

Program to open a file with First argument

TCS,

1 4069

Program to read a comment string

IBM,

1 3787

can we make a class static without using static keyword?

Aspire,

5 10750

what is the difference between class and structure in C++?

Aspire, IBS, TCS,

9 16878

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Un-Answered Questions { OOPS }

What is oops concept with example?

1086

What is Difference Between Inheritance and creating object and getting data? means Class A extends B{ B.getMethod();} (OR) Class A{ b obj=new B(); obj.getMethod(); }

2701

String = "C++ is an object oriented programming language.An imp feature of oops is classes and objects".Write a pgm to count the repeated words from this scenario?

2455

What is multilevel inheritance?

1264

What is use of overloading?

1190

What is polymorphism and why is it important?

1104

write a C++ program for booking using constructor and destructor.

2595

class type to basic type conversion

2477

What is the real time example of encapsulation?

1120

Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.

1428

Why is polymorphism used?

1093

What are the components of marker interface?

1110

What is Difeerence between List obj=new ArrayList(); and ArrayList obj=new ArrayList()?

2596

What is class in oop with example?

1162

What is polymorphism used for?

1113

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