What is Iteration Hierarchy? What is what is Object behavioral concept?

1 Answers  

---

why to use template classes in c++?

1 Answers  

---

I am developing a payroll system mini project.I used file concept in program for reading and writing.When the program is reloading into the memory that is if i execute next time the file was cleaned and adding data from the starting this is my problem.I want to strore the previous data and if i want to add any record that should be next of previous data.Please help me.

0 Answers  

---

what is the abstract class,interface ,its difference with a programatic eg.? hi,recently i went for an interview they ask me what is abstract class ,interface and its difference I said abstract class contain abstact method ,abstract method is a method with no body.Abstract class cannot be instantiated.Abstract class is a base class it required derived class for the implementation of method. Interface is a syntactical contract that all derived class should follow it define properties ,method,events which are known as member of interface. Then They asked me what is the difference between them. I said abstract class interface 1.abstact class can implement method 1.interface cant 2.abstact class can contain constructor, 2.interface cant destructor 3.abstract class cannot support multiple 3.interface support inheritance etc Then they said some different answer I said dont no. Then they ask me when i should make abstract class for an project and when i should make interface. I said if suppose there is two class which must be having method with different logic then we sholud make abstract class. and if suppose we have two class having method .with different logic then we can make interface . Am i correct with my explaination.if not correct me .please provide me that when should we create abstract class and interface and what is difference .please help me

1 Answers  

---

What is difference between abstraction and encapsulation?

0 Answers  

---

Can we have inheritance without polymorphism?

0 Answers  

---

What is destructor example?

0 Answers  

---

write a code for this. serial_number contained in the header of the file will be read , if this serial number is less than a previous serial number within a successfully processed file, or is the same as another serial number within a successfully processed file, or if the field contains anything other than 7 digits, then the file must error with the reason ‘Invalid SERIAL_NUMBER’.

0 Answers   Microsoft, TCS,

---

What are the 4 pillars of oop?

0 Answers  

---

i ahve v low % in 12th n BSC which is aroun 50 coz science was imposed on me......nw m doin MCA n my aggregate in above 74%,what shud i say if asked about low previous percentage??????

4 Answers  

---

write a program to find 2 power of a 5digit number with out using big int and exponent ?

0 Answers  

---

What Is a Polymorphism? How many types of polymorphism and whats that use in application?

2 Answers  

---