- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What do you mean by a dynamic initialization of variables?
Dynamic initialization of object refers to initializing the objects at run time i.e. the initial value of an object is to be provided during run time. Dynamic initialization can be achieved using constructors and passing parameters values to the constructors. This type of initialization is required to initialize the class variables during run time.
Why we need the dynamic initialization?
Dynamic initialization of objects is needed as
It utilizes memory efficiently.
Various initialization formats can be provided using overloaded constructors.
It has the flexibility of using different formats of data at run time considering the situation.
Example Code
#include <iostream>
using namespace std;
class simple_interest {
float principle , time, rate ,interest;
public:
simple_interest (float a, float b, float c) {
principle = a;
time =b;
rate = c;
}
void display ( ) {
interest =(principle* rate* time)/100;
cout<<"interest ="<<interest ;
}
};
int main() {
float p,r,t;
cout<<"principle amount, time and rate"<<endl;
cout<<"2000 7.5 2"<<endl;
simple_interest s1(2000,7.5,2);//dynamic initialization
s1.display();
return 1;
}Output
Enter principle amount ,rate and time 2000 7.5 2 Interest =300
Updated on: 30-Jul-2019
8K+ Views
Advertisements