1. Introduction to C++ Programming Language
Chapter-01
Introduction to C++ Programming Language

2. C++ History
1972 : Dennis Ritchie at Bell Labs designs C and 90% of UNIX is then written in C
Late 70’s : OOP becomes popular
Bjarne Stroustrup at Bell Labs adds features to C to form “C with Classes”
1983 : Name C++ first used
1998 : ISO/ANSI standardization of C++

3. Three C++ Program Stages
myprog.cpp
myprog.obj
myprog.exe
SOURCE
OBJECT
EXECUTABLE
written in
machine
language
C++
via compiler
via linker
other code
from libraries,
etc.

4. Translating a source file into an executable file
Source Code is entered with a text editor by the programmer.
Source Code
Preprocessor
#include <iostream.h>
void main(void) {
cout<<“Hello World”; }
Modified Source Code
Compiler
Object Code for other functions
Object Code
Linker
Translating a source file into an executable file
Executable Code

5. Running a Program
Output
Program
Data
Computer

6. C++ Program Translation
Data for C++ Program
Compile
Execute
C++ Compiler
Machine-Language
Instructions
Computer Execution
of Machine-Language Instructions
Output of C++ Program

7. C++ Program Translation Including Linker
Previously Compiled Helper Programs
Data for C++ Program
C++ Compiler
Computer
Machine-Language
Instructions
Linker
Computer Execution
of Machine-Language Instructions
Output of C++ Program

8. Java Programming Language
achieves portability by using both a compiler and an interpreter
first, a Java compiler translates a Java program into an intermediate bytecode--not machine language
then, an interpreter program called the Java Virtual Machine (JVM) translates a single instruction in the bytecode program to machine language and immediately runs it, one at a time

9. Java Program Translation
Both Compilation and Interpretation
Intermediate Code: “Byte Code”
portable low-level code
similar to assembly code, but hardware independent
invisible to Java programmer
Interpreter translates from generic byte code to hardware-specific machine code
Java Program
Data for Java Program
Java Compiler
Java Virtual
Machine
Byte-Code
Program
Byte-Code Interpreter
Machine-Language
Instructions
Computer Execution
of Machine-Language Instructions
Output of Java Program

10. Java Program Translation Including Linker
Previously Compiled Helper Programs
Data for Java Program
Java Compiler
Java Virtual
Machine
Byte-Code
Program
Byte-Code Interpreter
Machine-Language
Instructions
Linker
Computer Execution
of Machine-Language Instructions
Output of Java Program

11. Learning C++ There are two pieces to learning the C++ world.
First, is learning the C++ language itself.
Second, is learning how to use the classes and functions in the C++ standard library.

12. Procedural and Object-Oriented Programming
Procedural programming and object-oriented programming are two ways of thinking about software development and program design.