Answer Posted / arun

#include<iostream>
using namespace std;

class Singleton
{
public:
static Singleton* Instance();
private:
static Singleton* pinstance;
Singleton();
};

Singleton* Singleton::pinstance = 0;// initialize pointer
Singleton* Singleton::Instance ()
{
if (pinstance == 0) // is it the first call?
{
pinstance = new Singleton; // create sole instance
}
return pinstance; // address of sole instance
}
Singleton::Singleton()
{
//... perform necessary instance initializations
}

void main()
{
Singleton *p1 = Singleton::Instance();
cout<<p1<<endl;
Singleton *p2 = p1->Instance();
cout<<p2<<endl;
Singleton & ref = * Singleton::Instance();
}

What is the point of polymorphism?

751

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Why do we need oop?

857

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What is overriding in oop?

757

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Can enum be null?

746

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write knight tour problem which is present in datastructure

2346

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What is meant by multiple inheritance?

923

---

#include #include #include #include void insert(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); insert(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void insert(char *items, int count) { register int a, b; char t; for(a=1; a < count; ++a) { t = items[a]; for(b=a-1; (b >= 0) && (t < items[b]); b--) items[b+1] = items[b]; items[b+1] = t; } } design an algorithm for Insertion Sort

2345

---

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

2969

---

What is protected in oop?

788

---

What is interface? When and where is it used?

1857

---

What is the main feature of oop?

869

---

Write a program to implement OOPS concepts such as inheritance, polymorphism, friend function, operator overloading?

4455

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Question: Write a program that prints a paycheck. Ask the program user for the name of the employee, the hourly rate, and the number of hours worked. If the number of hours exceeds 40, the employee is paid “time and a half”, that is, 150 percent of the hourly rate on the hours exceeding 40. Be sure to use stepwi se refine ment and break your solution into several functions. Use the int_name function to print the dollar amount of the check.

923

---

What type of loop is a for loop?

844

---

What are the advantages of polymorphism?

748

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