Lecture Visual programming: Chapter 4 - Muhammad Bilal Zafar - TRƯỜNG CÁN BỘ QUẢN LÝ GIÁO DỤC THÀNH PHỐ HỒ CHÍ MINH

Ø The identifier cout (pronounced “C out”) is actually an object. Ø It is predefined in C++ to correspond to the standard output[r]

LESSON 03

Overview

of Previous Lesson(s)

2

Over View

Ø IDE

Ø An IDE or interactive development environment is a software application that provides comprehensive facilities to computer programmers for software development

Ø An IDE normally consists of a source code editor, build

automation tools and a debugger

Over View

Ø Microsoft Visual Studio is an integrated development

environment (IDE) from Microsoft Corporation

Ø It is used to develop console and graphical applications along with Windows Forms, Websites in both native code and with managed code

Ø It is supported by Microsoft Windows, Win Mobile, Win

CE, NET Framework

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Over View…

Ø C++

Ø Keywords Reserved words int, main, class, define

Ø Identifiers Programmers defined variables

Ø Operators Used to perform different types of operations on

data

Ø Punctuation ,5 ;

Over View…

Ø C++

Ø Data Types When computer programs store data in variables,

each variable must be assigned a specific data type

Some common data types include integers, floating point numbers, characters, strings, and arrays.

Ø Steps performed by a program

Ø Take the input

Ø Process the data

Ø Produce the output

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Parts of Program

// sample C++ program Comment

#include <iostream> Pre processor directive

using namespace std; Which namespace to use

int main() Main function beginning

cout << "Hello, there!";

return 0;

TODAY’S LESSON

8

Cout Object

Ø The identifier cout (pronounced “C out”) is actually an object

Ø It is predefined in C++ to correspond to the standard output stream in IOSTREAM File

Ø The standard output stream normally flows to the screen

display—although it can be redirected to other output

devices

Ø << is called the insertion operator

Cin Object

Ø The identifier cin (pronounced “C in”) is actually an object

Ø It is predefined in C++ to correspond to the standard input stream in IOSTREAM File

Ø This stream represents data coming from the keyboard

unless it is redirected

Ø << is also called the extraction operator

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