ITP 342 Mobile App Dev. Code
|
|
- Samuel Allen
- 5 years ago
- Views:
Transcription
1 ITP 342 Mobile App Dev Code
2 Comments Variables Arithmetic operators Format specifiers if - else Relational operators Logical operators Constants Outline 2
3 Comments For a single line comment, use // The compiler ignores any characters that follow these slashes, up to the end of the line // Button_FunViewController.h! #import Button_FunViewController : UIViewController {!UILabel *statustext; // Displays a message! (nonatomic, retain) IBOutlet UILabel *statustext;! - (IBAction) 3
4 Comments For a multi-line comment, use /* */ Use when comments span many lines of code /*! Button_FunViewController.h! Created by Trina Gregory! */! #import Button_FunViewController : UIViewController {!UILabel *statustext;! (nonatomic, retain) IBOutlet UILabel *statustext;! - (IBAction) 4
5 Instance Variables Specify the types of data to be stored in your class along with the names of those data types Data types can be: C basic types like int, float, char Objective-C defined types like BOOL Other classes that you have created or ones that are already created such as NSString Names Begin with a letter or underscore (_) Followed by any combo of letters (upper- or lowercase), underscores, or the digits 0-9 Cannot be a reserved word like int 5
6 Variables Variables allow us to store information The C programming language is a statically typed language We have to tell upfront what kind of data a variable is going to hold Format to declare a variable: type name; Examples: int num1; float score; Declare once, use many 6
7 C Data Types There are five basic data types associated with variables: int integer, a whole number float floating point value (i.e., a number with a fractional part) double a double-precision floating point value char a single character void valueless special purpose type 7
8 Defined Types The principal types used in Objective-C are defined in objc/objc.h 8
9 Assignment To assign variables a value, use = The value has to match the type of the variable Format: name = value; Example: num = 20; Sometimes you will want to declare and assign at the same time Format: type name = value; Example: int num = 20; 9
10 Strings Strings of characters are surrounded by double quotes In Objective-C, pass strings around in NSString objects NSString class provides an object wrapper for strings with advantages such as: Built-in memory management for storing arbitrary-length strings Support for Unicode printf-style utilities Shorthand notation for creating NSString objects NSString* name Gregory"; 10
11 Arithmetic Operators Arithmetic expressions can be formed using the +, -, *, and / operators together with variables or numbers referred to as operands When both operands are of the same type, the result is of that type When one of the operands is a floating-point type and the other is an integer, the result is a floating point type Example: int hoursworked = 40; float payrate = 8.25; Operator Function + Addition - Subtraction / Division * Multiplication % Modulus float pay = hoursworked * payrate; // will equal
12 The Division Operator The division operator (/) behaves as expected if one of the operands is a floatingpoint type When both operands are integer types, the result is truncated, not rounded Example: 14.0 / 5 has a value of / 5 has a value of 2 99 / 100 has a value of 0! 12
13 The mod Operator The mod (%) operator is used with operators of integer type to obtain the remainder after integer division 14 divided by 4 is 3 with a remainder of 2 Hence, 14 % 4 is equal to 2 The mod operator has many uses, including determining if an integer is odd or even determining if one integer is evenly divisible by another integer 13
14 Example Code int num1 = 10; int num2 = 3; int result; result = num1 + num2; NSLog(@"%i + %i = %i", num1, num2, result); result = num1 - num2; NSLog(@"%i - %i = %i", num1, num2, result); result = num1 * num2; NSLog(@"%i * %i = %i", num1, num2, result); result = num1 / num2; NSLog(@"%i / %i = %i", num1, num2, result); result = num1 % num2; NSLog(@"%i mod %i = %i", num1, num2, result); Output = = 7 10 * 3 = / 3 = 3 10 mod 3 = 1 14
15 Format Specifiers When using NSString or NSLog, we format depending on the type of the variable Specifer" Description" object such as NSString" %% % character" %d,%d,%i %u,%u integer (int)" unsigned integer" %f floating point number (double)" %e floating point number in scientific notation" %g floating point number in %e or %f" %s array of characters (C-string)" %c character (char)" 15
16 Flow of Control Flow of control is the order in which a program performs actions Up to this point, the order has been sequential A branching statement chooses between two or more possible actions A loop statement repeats an action until a stopping condition occurs 16
17 if - else Statement A branching statement that chooses between two possible actions if (booleanexpressionistrue) { statement1; statement2;... } else // booleanexpressionisfalse { statement3; statement4;... }" 17
18 Boolean Expressions The value of a boolean expression is either TRUE or FALSE (YES or NO) Examples: num > 0 num < 20 balance <= 0 time < limit The relational and logical operators together form the Boolean operators since their result is always TRUE or FALSE 18
19 Relational Operators Operator Function > Greater than >= Greater than or equal to == Equal to!= Not equal to <= Less than or equal to < Less than 19
20 Logical Operator - AND Boolean expressions can be combined using the "and (&&) operator Example if ((score > 0) && (score <= 100)) Not allowed if (0 < score <= 100) True when both expressions are true "If you eat your peas and your carrots, then you will get dessert." 20
21 Logical Operator - OR Boolean expressions can be combined using the or ( ) operator Example if ((quantity > 5) (cost < 10)) True when one or both expressions are true "If you eat your peas or your carrots, then you will get dessert." 21
22 Logical Operator - NOT A boolean expression can be negated using the not (!) operator Syntax!(booleanExpression) True when boolean expression is false 22
23 Logic Table A B A && B A B!(A) YES YES YES YES NO YES NO NO YES NO NO YES NO YES YES NO NO NO NO YES 23
24 Constants Sometimes we want to give a value to something that will not change (not be variable) To define constants, you can use #define #define kshowsegmentindex 0 #define kmaxplayers 4 When this symbol is encountered in your code, it will be replaced as follows: if (numplayers < kmaxplayers) {... } becomes if (numplayers < 4) {... } 24
25 #define The #define command can also be used to define functions, like this: #define kpi 3.141f #define square(x) ((x) * (x)) When used in your code, this... float area = kpi * square(r) becomes this... float area = 3.141f * ((r) * (r)) 25
26 #define Why did we use all those parentheses? Consider this: #define square(x) x * x! When used as follows, this... int a = square(b + c)! becomes this... int a = b + (c * b) + c! It s important to realize that #define is evaluated by the preprocessor, not the compiler Think of it as a textual search-and-replace in your code, done before the compiler ever sees it 26
CSE 1001 Fundamentals of Software Development 1. Identifiers, Variables, and Data Types Dr. H. Crawford Fall 2018
CSE 1001 Fundamentals of Software Development 1 Identifiers, Variables, and Data Types Dr. H. Crawford Fall 2018 Identifiers, Variables and Data Types Reserved Words Identifiers in C Variables and Values
More informationC: How to Program. Week /Mar/05
1 C: How to Program Week 2 2007/Mar/05 Chapter 2 - Introduction to C Programming 2 Outline 2.1 Introduction 2.2 A Simple C Program: Printing a Line of Text 2.3 Another Simple C Program: Adding Two Integers
More informationChapter 2 - Introduction to C Programming
Chapter 2 - Introduction to C Programming 2 Outline 2.1 Introduction 2.2 A Simple C Program: Printing a Line of Text 2.3 Another Simple C Program: Adding Two Integers 2.4 Memory Concepts 2.5 Arithmetic
More informationCHAPTER 3 BASIC INSTRUCTION OF C++
CHAPTER 3 BASIC INSTRUCTION OF C++ MOHD HATTA BIN HJ MOHAMED ALI Computer programming (BFC 20802) Subtopics 2 Parts of a C++ Program Classes and Objects The #include Directive Variables and Literals Identifiers
More informationChapter 2: Introduction to C++
Chapter 2: Introduction to C++ Copyright 2010 Pearson Education, Inc. Copyright Publishing as 2010 Pearson Pearson Addison-Wesley Education, Inc. Publishing as Pearson Addison-Wesley 2.1 Parts of a C++
More informationChapter 2: Special Characters. Parts of a C++ Program. Introduction to C++ Displays output on the computer screen
Chapter 2: Introduction to C++ 2.1 Parts of a C++ Program Copyright 2009 Pearson Education, Inc. Copyright 2009 Publishing Pearson as Pearson Education, Addison-Wesley Inc. Publishing as Pearson Addison-Wesley
More information2/29/2016. Definition: Computer Program. A simple model of the computer. Example: Computer Program. Data types, variables, constants
Data types, variables, constants Outline.1 Introduction. Text.3 Memory Concepts.4 Naming Convention of Variables.5 Arithmetic in C.6 Type Conversion Definition: Computer Program A Computer program is a
More informationCOMP Primitive and Class Types. Yi Hong May 14, 2015
COMP 110-001 Primitive and Class Types Yi Hong May 14, 2015 Review What are the two major parts of an object? What is the relationship between class and object? Design a simple class for Student How to
More informationIntroduction to C Programming. Chih-Wei Tang ( 唐之瑋 ) Department of Communication Engineering National Central University JhongLi, Taiwan
Introduction to C Programming Chih-Wei Tang ( 唐之瑋 ) Department of Communication Engineering National Central University JhongLi, Taiwan Outline Printing texts Adding 2 integers Comparing 2 integers C.E.,
More informationThe C++ Language. Arizona State University 1
The C++ Language CSE100 Principles of Programming with C++ (based off Chapter 2 slides by Pearson) Ryan Dougherty Arizona State University http://www.public.asu.edu/~redoughe/ Arizona State University
More informationEx: If you use a program to record sales, you will want to remember data:
Data Variables Programs need to remember values. Ex: If you use a program to record sales, you will want to remember data: A loaf of bread was sold to Sione Latu on 14/02/19 for T$1.00. Customer Name:
More informationChapter 2: Basic Elements of C++
Chapter 2: Basic Elements of C++ Objectives In this chapter, you will: Become familiar with functions, special symbols, and identifiers in C++ Explore simple data types Discover how a program evaluates
More informationObjectives. Chapter 2: Basic Elements of C++ Introduction. Objectives (cont d.) A C++ Program (cont d.) A C++ Program
Objectives Chapter 2: Basic Elements of C++ In this chapter, you will: Become familiar with functions, special symbols, and identifiers in C++ Explore simple data types Discover how a program evaluates
More informationChapter 2: Basic Elements of C++ Objectives. Objectives (cont d.) A C++ Program. Introduction
Chapter 2: Basic Elements of C++ C++ Programming: From Problem Analysis to Program Design, Fifth Edition 1 Objectives In this chapter, you will: Become familiar with functions, special symbols, and identifiers
More informationData types, variables, constants
Data types, variables, constants Outline 2.1 Introduction 2.2 A Simple C Program: Printing a Line of Text 2.3 Another Simple C Program: Adding Two Integers 2.4 Memory Concepts 2.5 Arithmetic in C 2.6 Decision
More informationReview: Exam 1. Your First C++ Program. Declaration Statements. Tells the compiler. Examples of declaration statements
Review: Exam 1 9/20/06 CS150 Introduction to Computer Science 1 1 Your First C++ Program 1 //*********************************************************** 2 // File name: hello.cpp 3 // Author: Shereen Khoja
More informationCSc 10200! Introduction to Computing. Lecture 2-3 Edgardo Molina Fall 2013 City College of New York
CSc 10200! Introduction to Computing Lecture 2-3 Edgardo Molina Fall 2013 City College of New York 1 C++ for Engineers and Scientists Third Edition Chapter 2 Problem Solving Using C++ 2 Objectives In this
More information2.1. Chapter 2: Parts of a C++ Program. Parts of a C++ Program. Introduction to C++ Parts of a C++ Program
Chapter 2: Introduction to C++ 2.1 Parts of a C++ Program Copyright 2009 Pearson Education, Inc. Publishing as Pearson Addison-Wesley 2-1 Parts of a C++ Program Parts of a C++ Program // sample C++ program
More informationChapter 2. C++ Basics. Copyright 2014 Pearson Addison-Wesley. All rights reserved.
Chapter 2 C++ Basics 1 Overview 2.1 Variables and Assignments 2.2 Input and Output 2.3 Data Types and Expressions 2.4 Simple Flow of Control 2.5 Program Style Slide 2-3 2.1 Variables and Assignments 2
More informationChapter 2. C++ Basics. Copyright 2014 Pearson Addison-Wesley. All rights reserved.
Chapter 2 C++ Basics Overview 2.1 Variables and Assignments 2.2 Input and Output 2.3 Data Types and Expressions 2.4 Simple Flow of Control 2.5 Program Style 3 2.1 Variables and Assignments Variables and
More informationChapter 2. C++ Basics
Chapter 2 C++ Basics Overview 2.1 Variables and Assignments 2.2 Input and Output 2.3 Data Types and Expressions 2.4 Simple Flow of Control 2.5 Program Style Slide 2-2 2.1 Variables and Assignments Variables
More informationPrimitive Types. Four integer types: Two floating-point types: One character type: One boolean type: byte short int (most common) long
Primitive Types Four integer types: byte short int (most common) long Two floating-point types: float double (most common) One character type: char One boolean type: boolean 1 2 Primitive Types, cont.
More informationComputer System and programming in C
1 Basic Data Types Integral Types Integers are stored in various sizes. They can be signed or unsigned. Example Suppose an integer is represented by a byte (8 bits). Leftmost bit is sign bit. If the sign
More informationITP 342 Mobile App Dev. Fundamentals
ITP 342 Mobile App Dev Fundamentals Objective-C Classes Encapsulate data with the methods that operate on that data An object is a runtime instance of a class Contains its own in-memory copy of the instance
More informationThese are reserved words of the C language. For example int, float, if, else, for, while etc.
Tokens in C Keywords These are reserved words of the C language. For example int, float, if, else, for, while etc. Identifiers An Identifier is a sequence of letters and digits, but must start with a letter.
More informationWill introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators
Operators Overview Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators Operands and Operators Mathematical or logical relationships
More informationOn a 64-bit CPU. Size/Range vary by CPU model and Word size.
On a 64-bit CPU. Size/Range vary by CPU model and Word size. unsigned short x; //range 0 to 65553 signed short x; //range ± 32767 short x; //assumed signed There are (usually) no unsigned floats or doubles.
More informationCreating a C++ Program
Program A computer program (also software, or just a program) is a sequence of instructions written in a sequence to perform a specified task with a computer. 1 Creating a C++ Program created using an
More informationITP 342 Mobile App Dev. Fundamentals
ITP 342 Mobile App Dev Fundamentals Object-oriented Programming Object-oriented programming (OOP) is a programming paradigm based on the concept of objects. Classes A class can have attributes & actions
More informationMore about Binary 9/6/2016
More about Binary 9/6/2016 Unsigned vs. Two s Complement 8-bit example: 1 1 0 0 0 0 1 1 2 7 +2 6 + 2 1 +2 0 = 128+64+2+1 = 195-2 7 +2 6 + 2 1 +2 0 = -128+64+2+1 = -61 Why does two s complement work this
More informationBASIC ELEMENTS OF A COMPUTER PROGRAM
BASIC ELEMENTS OF A COMPUTER PROGRAM CSC128 FUNDAMENTALS OF COMPUTER PROBLEM SOLVING LOGO Contents 1 Identifier 2 3 Rules for naming and declaring data variables Basic data types 4 Arithmetic operators
More informationLECTURE 02 INTRODUCTION TO C++
PowerPoint Slides adapted from *Starting Out with C++: From Control Structures through Objects, 7/E* by *Tony Gaddis* Copyright 2012 Pearson Education Inc. COMPUTER PROGRAMMING LECTURE 02 INTRODUCTION
More informationExpressions. Arithmetic expressions. Logical expressions. Assignment expression. n Variables and constants linked with operators
Expressions 1 Expressions n Variables and constants linked with operators Arithmetic expressions n Uses arithmetic operators n Can evaluate to any value Logical expressions n Uses relational and logical
More informationReserved Words and Identifiers
1 Programming in C Reserved Words and Identifiers Reserved word Word that has a specific meaning in C Ex: int, return Identifier Word used to name and refer to a data element or object manipulated by the
More informationREVIEW. The C++ Programming Language. CS 151 Review #2
REVIEW The C++ Programming Language Computer programming courses generally concentrate on program design that can be applied to any number of programming languages on the market. It is imperative, however,
More informationC++ Basic Elements of COMPUTER PROGRAMMING. Special symbols include: Word symbols. Objectives. Programming. Symbols. Symbols.
EEE-117 COMPUTER PROGRAMMING Basic Elements of C++ Objectives General Questions Become familiar with the basic components of a C++ program functions, special symbols, and identifiers Data types Arithmetic
More informationProgramming for Engineers Introduction to C
Programming for Engineers Introduction to C ICEN 200 Spring 2018 Prof. Dola Saha 1 Simple Program 2 Comments // Fig. 2.1: fig02_01.c // A first program in C begin with //, indicating that these two lines
More informationBasics of Java Programming
Basics of Java Programming Lecture 2 COP 3252 Summer 2017 May 16, 2017 Components of a Java Program statements - A statement is some action or sequence of actions, given as a command in code. A statement
More informationProgramming and Data Structures
Programming and Data Structures Teacher: Sudeshna Sarkar sudeshna@cse.iitkgp.ernet.in Department of Computer Science and Engineering Indian Institute of Technology Kharagpur #include int main()
More informationChapter 2: Using Data
Chapter 2: Using Data Declaring Variables Constant Cannot be changed after a program is compiled Variable A named location in computer memory that can hold different values at different points in time
More informationCS102: Variables and Expressions
CS102: Variables and Expressions The topic of variables is one of the most important in C or any other high-level programming language. We will start with a simple example: int x; printf("the value of
More informationDeclaration and Memory
Declaration and Memory With the declaration int width; the compiler will set aside a 4-byte (32-bit) block of memory (see right) The compiler has a symbol table, which will have an entry such as Identifier
More informationLecture 3 Tao Wang 1
Lecture 3 Tao Wang 1 Objectives In this chapter, you will learn about: Arithmetic operations Variables and declaration statements Program input using the cin object Common programming errors C++ for Engineers
More informationA First Program - Greeting.cpp
C++ Basics A First Program - Greeting.cpp Preprocessor directives Function named main() indicates start of program // Program: Display greetings #include using namespace std; int main() { cout
More informationOutline. Data and Operations. Data Types. Integral Types
Outline Data and Operations Data Types Arithmetic Operations Strings Variables Declaration Statements Named Constant Assignment Statements Intrinsic (Built-in) Functions Data and Operations Data and Operations
More information9/10/10. Arithmetic Operators. Today. Assigning floats to ints. Arithmetic Operators & Expressions. What do you think is the output?
Arithmetic Operators Section 2.15 & 3.2 p 60-63, 81-89 1 Today Arithmetic Operators & Expressions o Computation o Precedence o Associativity o Algebra vs C++ o Exponents 2 Assigning floats to ints int
More informationC++ Programming: From Problem Analysis to Program Design, Third Edition
C++ Programming: From Problem Analysis to Program Design, Third Edition Chapter 2: Basic Elements of C++ Objectives (continued) Become familiar with the use of increment and decrement operators Examine
More informationCS313D: ADVANCED PROGRAMMING LANGUAGE
CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 2 : C# Language Basics Lecture Contents 2 The C# language First program Variables and constants Input/output Expressions and casting
More informationCS113: Lecture 3. Topics: Variables. Data types. Arithmetic and Bitwise Operators. Order of Evaluation
CS113: Lecture 3 Topics: Variables Data types Arithmetic and Bitwise Operators Order of Evaluation 1 Variables Names of variables: Composed of letters, digits, and the underscore ( ) character. (NO spaces;
More informationChapter Overview. C++ Basics. Variables and Assignments. Variables and Assignments. Keywords. Identifiers. 2.1 Variables and Assignments
Chapter 2 C++ Basics Overview 2.1 Variables and Assignments 2.2 Input and Output 2.3 Data Types and Expressions 2.4 Simple Flow of Control 2.5 Program Style Copyright 2011 Pearson Addison-Wesley. All rights
More informationBasic Operations jgrasp debugger Writing Programs & Checkstyle
Basic Operations jgrasp debugger Writing Programs & Checkstyle Suppose you wanted to write a computer game to play "Rock, Paper, Scissors". How many combinations are there? Is there a tricky way to represent
More informationChapter 1 & 2 Introduction to C Language
1 Chapter 1 & 2 Introduction to C Language Copyright 2007 by Deitel & Associates, Inc. and Pearson Education Inc. All Rights Reserved. Chapter 1 & 2 - Introduction to C Language 2 Outline 1.1 The History
More informationData and Variables. Data Types Expressions. String Concatenation Variables Declaration Assignment Shorthand operators. Operators Precedence
Data and Variables Data Types Expressions Operators Precedence String Concatenation Variables Declaration Assignment Shorthand operators Review class All code in a java file is written in a class public
More informationGetting started with Java
Getting started with Java Magic Lines public class MagicLines { public static void main(string[] args) { } } Comments Comments are lines in your code that get ignored during execution. Good for leaving
More informationBITG 1233: Introduction to C++
BITG 1233: Introduction to C++ 1 Learning Outcomes At the end of this lecture, you should be able to: Identify basic structure of C++ program (pg 3) Describe the concepts of : Character set. (pg 11) Token
More informationArithmetic Expressions in C
Arithmetic Expressions in C Arithmetic Expressions consist of numeric literals, arithmetic operators, and numeric variables. They simplify to a single value, when evaluated. Here is an example of an arithmetic
More informationExpressions and Data Types CSC 121 Spring 2015 Howard Rosenthal
Expressions and Data Types CSC 121 Spring 2015 Howard Rosenthal Lesson Goals Understand the basic constructs of a Java Program Understand how to use basic identifiers Understand simple Java data types
More informationEXPRESSIONS AND ASSIGNMENT CITS1001
EXPRESSIONS AND ASSIGNMENT CITS1001 Scope of this lecture Assignment statements Expressions ASSIGNMENT STATEMENT Assignment Statements!!!mark = 50;!! Read as the value in variable on the LHS becomes equal
More informationBASIC COMPUTATION. public static void main(string [] args) Fundamentals of Computer Science I
BASIC COMPUTATION x public static void main(string [] args) Fundamentals of Computer Science I Outline Using Eclipse Data Types Variables Primitive and Class Data Types Expressions Declaration Assignment
More informationISA 563 : Fundamentals of Systems Programming
ISA 563 : Fundamentals of Systems Programming Variables, Primitive Types, Operators, and Expressions September 4 th 2008 Outline Define Expressions Discuss how to represent data in a program variable name
More informationMaciej Sobieraj. Lecture 1
Maciej Sobieraj Lecture 1 Outline 1. Introduction to computer programming 2. Advanced flow control and data aggregates Your first program First we need to define our expectations for the program. They
More informationBits, Words, and Integers
Computer Science 52 Bits, Words, and Integers Spring Semester, 2017 In this document, we look at how bits are organized into meaningful data. In particular, we will see the details of how integers are
More informationInformation Science 1
Topics covered Information Science 1 Terms and concepts from Week 8 Simple calculations Documenting programs Simple Calcula,ons Expressions Arithmetic operators and arithmetic operator precedence Mixed-type
More informationCourse Outline. Introduction to java
Course Outline 1. Introduction to OO programming 2. Language Basics Syntax and Semantics 3. Algorithms, stepwise refinements. 4. Quiz/Assignment ( 5. Repetitions (for loops) 6. Writing simple classes 7.
More informationIntroduction to Programming
Introduction to Programming session 5 Instructor: Reza Entezari-Maleki Email: entezari@ce.sharif.edu 1 Fall 2010 These slides are created using Deitel s slides Sahrif University of Technology Outlines
More informationUnit 3. Constants and Expressions
1 Unit 3 Constants and Expressions 2 Review C Integer Data Types Integer Types (signed by default unsigned with optional leading keyword) C Type Bytes Bits Signed Range Unsigned Range [unsigned] char 1
More informationFeatures of C. Portable Procedural / Modular Structured Language Statically typed Middle level language
1 History C is a general-purpose, high-level language that was originally developed by Dennis M. Ritchie to develop the UNIX operating system at Bell Labs. C was originally first implemented on the DEC
More informationFull file at
Java Programming, Fifth Edition 2-1 Chapter 2 Using Data within a Program At a Glance Instructor s Manual Table of Contents Overview Objectives Teaching Tips Quick Quizzes Class Discussion Topics Additional
More informationBy the end of this section you should: Understand what the variables are and why they are used. Use C++ built in data types to create program
1 By the end of this section you should: Understand what the variables are and why they are used. Use C++ built in data types to create program variables. Apply C++ syntax rules to declare variables, initialize
More informationCharacter Set. The character set of C represents alphabet, digit or any symbol used to represent information. Digits 0, 1, 2, 3, 9
Character Set The character set of C represents alphabet, digit or any symbol used to represent information. Types Uppercase Alphabets Lowercase Alphabets Character Set A, B, C, Y, Z a, b, c, y, z Digits
More informationCS 112 Introduction to Computing II. Wayne Snyder Computer Science Department Boston University
CS 112 Introduction to Computing II Wayne Snyder Department Boston University Today: Java basics: Compilation vs Interpretation Program structure Statements Values Variables Types Operators and Expressions
More informationFrom Pseudcode Algorithms directly to C++ programs
From Pseudcode Algorithms directly to C++ programs (Chapter 7) Part 1: Mapping Pseudo-code style to C++ style input, output, simple computation, lists, while loops, if statements a bit of grammar Part
More informationChapter 1 Introduction to Computers and C++ Programming
Chapter 1 Introduction to Computers and C++ Programming 1 Outline 1.1 Introduction 1.2 What is a Computer? 1.3 Computer Organization 1.7 History of C and C++ 1.14 Basics of a Typical C++ Environment 1.20
More informationChapter 3: Operators, Expressions and Type Conversion
101 Chapter 3 Operators, Expressions and Type Conversion Chapter 3: Operators, Expressions and Type Conversion Objectives To use basic arithmetic operators. To use increment and decrement operators. To
More informationLECTURE 3 C++ Basics Part 2
LECTURE 3 C++ Basics Part 2 OVERVIEW Operators Type Conversions OPERATORS Operators are special built-in symbols that have functionality, and work on operands. Operators are actually functions that use
More informationObject-Oriented Programming
Object-Oriented Programming Java Syntax Program Structure Variables and basic data types. Industry standard naming conventions. Java syntax and coding conventions If Then Else Case statements Looping (for,
More information1. C++ Overview. C++ Program Structure. Data Types. Assignment Statements. Input/Output Operations. Arithmetic Expressions.
1. C++ Overview 1. C++ Overview C++ Program Structure. Data Types. Assignment Statements. Input/Output Operations. Arithmetic Expressions. Interactive Mode, Batch Mode and Data Files. Common Programming
More informationCGS 3066: Spring 2015 JavaScript Reference
CGS 3066: Spring 2015 JavaScript Reference Can also be used as a study guide. Only covers topics discussed in class. 1 Introduction JavaScript is a scripting language produced by Netscape for use within
More information\n is used in a string to indicate the newline character. An expression produces data. The simplest expression
Chapter 1 Summary Comments are indicated by a hash sign # (also known as the pound or number sign). Text to the right of the hash sign is ignored. (But, hash loses its special meaning if it is part of
More informationChapter 2 Using Data. Instructor s Manual Table of Contents. At a Glance. Overview. Objectives. Teaching Tips. Quick Quizzes. Class Discussion Topics
Java Programming, Sixth Edition 2-1 Chapter 2 Using Data At a Glance Instructor s Manual Table of Contents Overview Objectives Teaching Tips Quick Quizzes Class Discussion Topics Additional Projects Additional
More informationObjectives. Data Types (continued) Data Types 4. การเข ยนโปรแกรมพ นฐาน ว ทยาการคอมพ วเตอร เบ องต น Fundamentals of Computer Science
204111 ว ทยาการคอมพ วเตอร เบ องต น Fundamentals of Computer Science ภาคการศ กษาท ภาคการศกษาท 1 ป ปการศกษา การศ กษา 2556 4. การเข ยนโปรแกรมพ นฐาน 4.2 ต วแปร น พจน และการก าหนดค า รวบรวมโดย อ. ดร. อาร ร
More informationMidterms Save the Dates!
University of British Columbia CPSC 111, Intro to Computation Alan J. Hu Primitive Data Types Arithmetic Operators Readings Your textbook is Big Java (3rd Ed). This Week s Reading: Ch 2.1-2.5, Ch 4.1-4.2.
More informationWork relative to other classes
Work relative to other classes 1 Hours/week on projects 2 C BOOTCAMP DAY 1 CS3600, Northeastern University Slides adapted from Anandha Gopalan s CS132 course at Univ. of Pittsburgh Overview C: A language
More informationArithmetic type issues
Arithmetic type issues Type combination and promotion ( a 32) = 97 32 = 65 = A Smaller type (char) is promoted to be the same size as the larger type (int) Determined at compile time - based purely on
More informationMechatronics and Microcontrollers. Szilárd Aradi PhD Refresh of C
Mechatronics and Microcontrollers Szilárd Aradi PhD Refresh of C About the C programming language The C programming language is developed by Dennis M Ritchie in the beginning of the 70s One of the most
More informationUNIT- 3 Introduction to C++
UNIT- 3 Introduction to C++ C++ Character Sets: Letters A-Z, a-z Digits 0-9 Special Symbols Space + - * / ^ \ ( ) [ ] =!= . $, ; : %! &? _ # = @ White Spaces Blank spaces, horizontal tab, carriage
More informationDaMPL. Language Reference Manual. Henrique Grando
DaMPL Language Reference Manual Bernardo Abreu Felipe Rocha Henrique Grando Hugo Sousa bd2440 flt2107 hp2409 ha2398 Contents 1. Getting Started... 4 2. Syntax Notations... 4 3. Lexical Conventions... 4
More informationprintf( Please enter another number: ); scanf( %d, &num2);
CIT 593 Intro to Computer Systems Lecture #13 (11/1/12) Now that we've looked at how an assembly language program runs on a computer, we're ready to move up a level and start working with more powerful
More informationProgram Elements -- Introduction
Program Elements -- Introduction We can now examine the core elements of programming Chapter 3 focuses on: data types variable declaration and use operators and expressions decisions and loops input and
More informationFundamental of Programming (C)
Borrowed from lecturer notes by Omid Jafarinezhad Fundamental of Programming (C) Lecturer: Vahid Khodabakhshi Lecture 3 Constants, Variables, Data Types, And Operations Department of Computer Engineering
More informationLecture 4 CSE July 1992
Lecture 4 CSE 110 6 July 1992 1 More Operators C has many operators. Some of them, like +, are binary, which means that they require two operands, as in 4 + 5. Others are unary, which means they require
More informationC/C++ Programming for Engineers: Working with Integer Variables
C/C++ Programming for Engineers: Working with Integer Variables John T. Bell Department of Computer Science University of Illinois, Chicago Preview Every good program should begin with a large comment
More informationVariables, Data Types, and Arithmetic Expressions Learning Objectives:
Variables, Data Types, and Arithmetic Expressions Learning Objectives: Printing more than one variable in one printf() Printing formatting characters in printf Declaring and initializing variables A couple
More informationProgram Fundamentals
Program Fundamentals /* HelloWorld.java * The classic Hello, world! program */ class HelloWorld { public static void main (String[ ] args) { System.out.println( Hello, world! ); } } /* HelloWorld.java
More informationLesson 02 Working with Data Types. MIT 31043: VISUAL PROGRAMMING By: S. Sabraz Nawaz Senior Lecturer in MIT
Lesson 02 Working with Data Types MIT 31043: VISUAL PROGRAMMING Senior Lecturer in MIT Variables A variable is a storage location in memory that is represented by a name. A variable stores data, which
More informationData types Expressions Variables Assignment. COMP1400 Week 2
Data types Expressions Variables Assignment COMP1400 Week 2 Data types Data come in different types. The type of a piece of data describes: What the data means. What we can do with it. Primitive types
More information2. Numbers In, Numbers Out
COMP1917: Computing 1 2. Numbers In, Numbers Out Reading: Moffat, Chapter 2. COMP1917 15s2 2. Numbers In, Numbers Out 1 The Art of Programming Think about the problem Write down a proposed solution Break
More informationFull file at
Java Programming: From Problem Analysis to Program Design, 3 rd Edition 2-1 Chapter 2 Basic Elements of Java At a Glance Instructor s Manual Table of Contents Overview Objectives s Quick Quizzes Class
More informationBEGINNING PROBLEM-SOLVING CONCEPTS FOR THE COMPUTER. Chapter 2
1 BEGINNING PROBLEM-SOLVING CONCEPTS FOR THE COMPUTER Chapter 2 2 3 Types of Problems that can be solved on computers : Computational problems involving some kind of mathematical processing Logical Problems
More informationObjectives. In this chapter, you will:
Objectives In this chapter, you will: Become familiar with functions, special symbols, and identifiers in C++ Explore simple data types Discover how a program evaluates arithmetic expressions Learn about
More information