COMPROG

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Algorithm

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65 Terms

1

Algorithm

step by step solution to solve a problem or to accomplish specific task.

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2

Flowchart

graphical representation of algorithm. There are symbols and illustration to use.

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3

Pseudo code

tool to plan the algorithm and use short English statements.

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4

Programs

- instruction given to a computer.

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5

IPO Chart

use to organized the result of program analysis.

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6

compiler

converts programming language program to machine language

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7

Computer Programming

It means giving instruction or directions to accomplish specific task

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8

Analyze the problem

- Problem outline and list of requirements.

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9

Plan the algorithm

Design algorithm using pseudo-code, IPO and flowcharts.

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10

Check the algorithm

Trace algorithm.

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11

Code the algorithm into a program.

implement algorithms into code.

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12

Maintenance

Evaluate and modify the program if necessary. IPO chart is also applicable.

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13

Interpreter

converts programming languages to machine language line by line

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14

Machine Language

Instructions written in 0s and 1s are called _______. ___________ language (each type of machine has its own language) represent the only way to communicate directly with the computer

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15

dataType varaibleName = value;

Write Data Types Syntax

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16

const dataType varaibleName = value;

Write Data type of const

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17

Assembly language

it simplify the programmer’s job by allowing the programmer to use mnemonics in place of the 0s and 1s in the program

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18

High level language

It represent the next major development in programming languages. These languages are a vast improvement over machine and assembly language because they allow the programmer to use instructions that more closely resemble the English language.

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19

Process

indicates any type of internal operation inside the Processor or memory

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20

input/output

used for any _____/______ operation. indicates that the computer is to obtain data or output results

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21

Decision

used to ask a question that can be answered in a binary format (yes/no, true/false

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22

Connector

Allows the flowchart to be drawn without intersecting lines or without a reverse flow

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23

Pre-defined Process

Used to invoke a subroutine or an interrupt program

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24

Terminal

indicates the starting or ending of the program, process, or interrupt program.

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25

Flow lines

show direction of flow

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26

identifiers

All C++ variables must be identified with descriptive unique names. These unique names are called

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27

==

equal to

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28

! =

not equal to

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29

<=

less than or equal to

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30

>=

greater than or equal to

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31

Sequence

In a computer program, the _________ structure directs the computer to process program instructions, one after another, in the order listed in the programs.

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32

Selection

indicates that a decision (based on some condition) needs to be made followed by an appropriate action derived from that decision.

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33

Repetition

or loops, are used when a program needs to repeatedly process one or more instructions until some condition is met, at which time the loop ends. Many programming tasks are repetitive, having little variation from one item to the next

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34

Control Structures

All computer programs, no matter how simple or how complex, are written using one or more of three basic structures: Sequence, Selection, and Repetition. These structures are called __________ or logic structures because they control the flow of a program’s logic.

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35

while loop

The loop construct in C++ is used when the number of iterations is known beforehand is called _________

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36

Pseudo Code

The short English statements that represent an algorithm are called ____________

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37

braces

In a C++ program, the body of a function is enclosed in ______

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38

Compiler

Most high-level languages use a(n) _________________________ to translate the instructions into a language that the computer can understand.

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39

High Level Language

When writing a(n) _________________________ program, the programmer concentrates on the major tasks

needed to accomplish a goal.

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40

Object Oriented Program

When writing a(n) _________________________ program, the programmer breaks up a problem into

interacting objects.

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41

Sequence

a series of actions that is completed in a specific order. Action 1 is performed, then Action 2, then Action 3, etc,. until all of the actions in the sequence have been carried out.

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42

Diamond symbol

denotes decision symbol to represent condition in the selection and repetition structures.

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43

For LOOP (__________, _____, _____)

Initialization, condition , Update

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44

Continue Statement

1. if the condition is true, the iteration is continued in the loop otherwise the loop will stop.

2. if inside the loop, the continue skips the statements and transfer to execute the next loop.

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45

Break Statement

1. user is not sure about the input value of iteration

2. user wants to stop the program based on different condition.

3. use also in switch statements.

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46

Exception Handling

is a way of handling errors that may occur while the program is running, like dividing any number by zero.

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47

try, throw, and catch

Exception handling is built upon three keywords

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48

Try

Block identifies a block of code for which particular exceptions will be activated. It's followed by one or more catch blocks.

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Throw

− A program throws an exception when a problem shows up.

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50

Catch

A program catches an exception with an exception handler at the place in a program where you want to handle the problem.

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51

Selection Structure, Sequence Structure and Repetition

Three types of control structure

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52

Control Structure

It answers either true or false, yes or no, 1 or 0. The computer choose to execute depending on the operation used.

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53

Array

Collection of elements that are of the same type. Group of related variables that have the same name and data type.

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54

False

((5!=3) && (6<5))

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55

TRUE

((6 == 6) && (6>3))

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56

True

((6 == 6) || (6 < 3))

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57

False

((5 == 3) || (6<3))

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When need to use exception handling:

1. No new allocating memory - sometimes the storage is full and cannot allocate memory.

2. Division by zero

3. Invalid function parameter - occur in function overloading.

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59

Post Test Loops

Condition is evaluated or tested after

the instruction.

It processed at least once.

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60

Pretest Loops

Condition is evaluated or tested

first before the instruction.

The instruction is executed if the

condition is TRUE.

The loop repeats after the

executing the instruction.

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61

Identifiers

can be short names (like x and y) or more descriptive names (age, sum, totalVolume).

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62

B. %

Which of the following is a character literal constant?

a. ‘56’

b. ‘%’

c. “a”

d. Both a and b

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63

d. All of the Above

Which of the following is a string literal constant?

a. “$”

b. “Good Morning”

c. “”

d. All of the Above

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64

int population = 10000;

Write a C++ statement that declares and initializes an int variable named population.

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65

const double MAX_PAY = 25.55;

Write a C++ statement that declares the MAX_PAY named constant. The constant should have a double data type and contain the number 25.55

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