What is byval and byref? What are differences between them?
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difference between overloading and overridding
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.
what is a ststic variable and stiticfunction briefly explain with exmple and in which case we use
can you give real time example for polymarphism
What is abstraction oop?
Why static functions always uses static variables?
WHAT IS ABSTRUCT DATA TYPE ? PLEASE EXPLAIN IT.
How do you achieve runtime polymorphism?
Why we are use # in begning of programme of c++.
What does oop mean in snapchat?
Why do we use oop?
What is the main feature of oop?