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Write a program to add two numbers:

1. value given at run time:

#include<iostream.h>

#include<conio.h>

void main()

{

int a,b;

a=10;

b=12;

Cout<<"Addition is="<<a+b;

getch();

}

Out put: Addition is=22

2.value given at compile time

#include<iostream.h>

#include<conio.h>

void main()

{

int a,b;

cout<<"enter value of a=";

cin>>a;

cout<<"enter value of b=";

cin>>b;

cout<<"Addition is="<<a+b;

getch();

}

Out put: enter value of a=12
               enter value of b=10

press enter

                  Addition is=22

Data types in c++:

1.Int                      (for integer numbers like 1,2  etc)

2.Float                  (for fraction digits like 1.5, 3.4 etc)

3.Char                   (For characters like a. A, B etc)

4.Boolean              (for true or false)

First c++ program:

#include<iostream.h>       //This is header file

#include<conio.h>           //This is header file

void main()                     // Starting of main program 

{

cout<<"first program";    //This will print the "first prgram " at screen

getch();                            //end of program

}

The user who is using dev can type following program:

#include<iosream>

using namespace std;

and then start from void main(){

cout<<"first program";

Sysem ("pause")

}

Type these programs on your compiler and then run it.

for turbo compiler run commond is f9:

C++:

Let us start c++:

First of install a compiler for the compilation of c++ programs:

You can install turbo or dev ++ for the compilation of programs.You can download these software from filehippo.com.

Java:

Java is an object oriented programming language.The syntax of java related to other object oriented languages.Java is mostly used to developing smart phones apps, games.Java is also used in web developing.

Introduction

Brief introduction of computer programming languages.

C:

C is a procedural language.It is also called mother language.Now a days it is used to develop hardware based software projects.It is used to develop software related to assembly etc.

C++:

c++ is a object oriented language. It is used to develop desktop apps and web apps etc.

C++  is a powerful language.The syntax of c++ is bit different from c.