No Class in Spring Semester

MLK Day

Review "what is it #1 & #2 flowcharts"

Dream Spark - MS Software

data vs programs (programs are instructions run by the processor, data are values used by the programs, they are both just bytes)

programming languages & generations

Compile - translate to machine language

Compiler - program that compiles

syntax - how symbols are combined to form valid expressions

semantics - meaning of the symbols that form an expression

language - symbols with semantic meaning and syntax used to write instructions for the computer

Language Generations

Low

   1st - Machine   (.exe files in windows)

   2nd - Assembly

High

   3rd - High Level  (c++ is here)

   4th - Very High Level          

 

IDE - Integrated Development Environment

   Compiler, code editor, Debugger, Help system

 

Intro to C++ syntax

#include<iostream>

using namespace std;

void main() {}

literal - a number such as 45 or a word such as "Bob" that is not a variable

// - begins a comment line in c++

# - lines that begin with this are instructions to the compiler (aka, compiler directive)

brief introduction to variables

writing to output stream... cout << 

reading from input stream... cin >>

>> - stream extraction operator

<< - stream insertion operator

cascading << 

Read chapters 1 from Schaum

 

Review Tuesday

____________________

declaring variables

data types

short - 2 bytes, no decimals

int - 4 bytes, no decimals

float - 4 bytes, with decimals

double - 8 bytes, with decimals

bool - 1 byte, true or false

_______________

cin >>  - reads until white space

   example - 1 2 3 4 5 - entered into the input stream

cascading >> 

_______________

conditional statements - if, if-else, if-else-if control structures

if  - one way choice

if else  - two way choice

accidental use of a ";" at the end of an if statement

_______________

Read chapters 2 from Schaum

 

 

Review

declaring variables

data types

short - 2 bytes, no decimals

int - 4 bytes, no decimals

float - 4 bytes, with decimals

double - 8 bytes, with decimals

bool - 1 byte, true or false

______________

Integer vs. Floating point Division

integer division - decimals are lost

% - modulas operator - used to find remainders of integer division

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use of {} with conditions   

if-else-if

 

when can nested if-else structures be turned into if-else-if structures

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logical and &&

logical or ||

use ! (aka not) to negate a boolean expression

_______________

while

"I will not talk in class" example

#include <iomanip> 

++  increment operator

--  decrement operator

Read chapters 3 from Schaum

 

nested loops

do while

determinate(counted) vs indeterminate loops

data validation loops

Controlling decimal number output

 

Controlling the width of the next item to be displayed

Read chapters 4 from Schaum