Answer Posted / jun jitendra

"Poly" means "many" and "morph" means "form". Polymorphism is the ability of an object (or reference) to assume (be replaced by) or become many different forms of object. Example: function overloading, function overriding, virtual functions. Another example can be a plus ‘+’ sign, used for adding two integers or for using it to concatenate two strings.
//method hiding in polymorphism
using System;
namespace Polymorphism
{
class A
{
public void Foo() { Console.WriteLine("A::Foo()"); }
}

class B : A
{
public new void Foo() { Console.WriteLine("B::Foo()"); }
}

class Test
{
static void Main(string[] args)
{
A a;
B b;

a = new A();
b = new B();
a.Foo(); // output --> "A::Foo()"
b.Foo(); // output --> "B::Foo()"

a = new B();
a.Foo(); // output --> "A::Foo()"
}
}
}

Write a C++ program without using any loop (if, for, while etc) to print prime numbers from 1 to 100 and 100 to 1 (Do not use 200 print statements!!!)

2050

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This program numbers the lines found in a text file. Write a program that reads text from a file and outputs each line preceded by a line number. Print the line number right-adjusted in a field of 3 spaces. Follow the line number with a colon, then one space, then the text of the line. You should get a character at a time and write code to ignore leading blanks on each line. You may assume that the lines are short enough to fit within a line on the screen. Otherwise, allow default printer or screen output behavior if the line is too long (i.e., wrap or truncate). A somewhat harder version determines the number of spaces needed in the field for the line numbers by counting lines before processing the lines of the file. This version of the program should insert a new line after the last complete word that will fit within a 72-character line.

2092

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Explain the concepts involved in Object Oriented programming.

1169

---

Give two or more real cenario of virtual function and vertual object

2298

---

Why it is called runtime polymorphism?

1071

---

What is polymorphism used for?

1026

---

What is the highest level of cohesion?

996

---

What are the components of marker interface?

1009

---

What is the advantage of oop over procedural language?

1025

---

is there any choice in opting subjects like 4 out of 7

2141

---

What are the three main types of variables?

1080

---

What does enum stand for?

1076

---

Are polymorphisms mutations?

1117

---

How do you explain polymorphism?

1036

---

Can static class have constructor?

997

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