What is Programming Language?
A programming language is a formal system designed to communicate instructions to a computer. It is a set of rules and syntax that allows programmers to write software, specifying how a computer should perform a certain task or set of tasks
Types of Programming language
There are three types of Programming language
Low level Programming Language i.e (Assembly)
Middle level Programming Language i.e (C)
High level Programming Language i.e (C++,Java,Python)
Software and Shortcut Keys
Turbo c7 is a compiler which is used to run the C program
F3 Open
F2 Save
F5 Min/Max the Screen
Alt + Enter Min/Max the Window Screen
Alt + F9 Interpret (Error Checking)
Ctrl + F9 Compile (For Result)
C++ Classes and Objects
Class in C++ is the building block that leads to Object-Oriented programming. It is a user-defined data type, which holds its own data members and member functions, which can be accessed and used by creating an instance of that class. A C++ class is like a blueprint for an object.
An Object is an instance of a Class. When a class is defined, no memory is allocated but when it is instantiated (i.e. an object is created) memory is allocated.
Defining Class
Declaring Objects
ClassName ObjectName;
Basic Structure of the Program (Hello World!)
#include<iostream.h>
#include<conio.h>
class mktutorial
{
public:
displayhello()
{
cout<<"hello";
}
}
void main()
{
mktutorial mk;
clrscr();
mk.displayhello();
getch();
}
#include<conio.h>
class mktutorial
{
public:
displayhello()
{
cout<<"hello";
}
}
void main()
{
mktutorial mk;
clrscr();
mk.displayhello();
getch();
}
Two number addition from user input
#include<iostream.h>
#include<conio.h>
class mktutorial
{
public:
operation()
{
int a,b;
cout<<"Enter two nos=";
cin>>a>>b;
cout<<"Addition="<<a+b;
}
}
void main()
{
mktutorial mk;
clrscr();
mk.operation();
getch();
}
#include<conio.h>
class mktutorial
{
public:
operation()
{
int a,b;
cout<<"Enter two nos=";
cin>>a>>b;
cout<<"Addition="<<a+b;
}
}
void main()
{
mktutorial mk;
clrscr();
mk.operation();
getch();
}