Arithmetic and IO. 25 August 2017
|
|
- Marshall Richardson
- 6 years ago
- Views:
Transcription
1 Arithmetic and IO 25 August 2017
2 Submissions you can submit multiple times to the homework dropbox file name: uppercase first letter, Yourlastname0829.java the system will use the last submission before the deadline mail size to confirm a file was attached
3 Variables variables must be declared before they can be used unlike Ada, variables in Java are not declared all at the top of a block they are declared inside the code, as late as possible, immediately where they are needed variable identifiers must begin with a lowercase letter, and use camelcase a variable may be initialized when it s declared, or not, depending on need (do not initialize when unnecessary) a constant is like a variable, except a constant must be initialized when it is declared its value can never change it is denoted by the reserved word final its identifier is in SNAKE CASE
4 Primitive Conversion and Casting you can convert amongst types much more easily than in Ada but much more difficult than in Python some conversions are automatic, some require a typecast lossless conversions are automatic double conversion factor = 12.34F; long accululator = 12; integer to floating is automatic, even if lossy float circumference = L; // ugh!
5 Primitive Conversion and Casting all other conversions either require a typecast or are illegal int quotient = 10.0 / 3.0; // illegal int quotient = (int)(10.0 / 3.0); // ok no conversion or cast is legal to or from boolean
6 Arithmetic the biggest deal is keeping integer and floating point arithmetic straight if all operands are integers, the result is an integer if one or two operands are floating (float or double), the result is floating there is only one division operator, / if both operands are integers, the operation is (truncating) integer division if either operand is floating, the result is floating
7 Increment and Decrement the most common operations in all of computing are increment-by-one and decrement-by-one Java has pre- and post-increment and -decrement operators int x = 5; x++; double d = 10.2; ++d;
8 Increment and Decrement what are the values of x, y, and z after this code? int x = 5; x--; int y = x--; int z = --x;
9 Increment and Decrement what are the values of x, y, and z after this code? int x = 5; x--; int y = x--; int z = --x; x is 2 y is 4 z is 2
10 Retrieve - Modify - Store the second-most common operation Awkward Newbie x = x + 5; Correct Professional Way x += 5; works for all binary arithmetic operators special trap for Ada folks: x /= 2;
11 Integer Division and Remainder 7/3 =
12 Integer Division and Remainder 7/3 = 2 7/ 3 =
13 Integer Division and Remainder 7/3 = 2 7/ 3 = 2 7 % 3 =
14 Integer Division and Remainder 7/3 = 2 7/ 3 = 2 7 % 3 = 1 7 % 3 =
15 Integer Division and Remainder 7/3 = 2 7/ 3 = 2 7 % 3 = 1 7 % 3 = the behavior of % is very confusing if either operand is negative different languages define it differently Java: 7 % 3 = 1 Python: 7 % 3 = 2 Ada: two different operators, mod and rem don t try to memorize know what you want, test to make sure it works
16 Math Computations beyond simple 4-function arithmetic, Java has the Math library it is built-in, so you don t need to import it a few examples: Math.sqrt(x) returns the square root of x Math.exp(x) returns the value e x
17 Console Input and Output in CS260, you will write graphical programs in CS181, all our programs use text for input and output all input will come from keyboard file all output will go to screen file
18 Output output is relatively simple System. }{{}}{{} out class object. print }{{} method.( }{{} foo ); argument the argument can be a primitive or object value the argument can be literal, variable, constant, or expression the print method does not add a newline the println method adds a newline at the end
19 Simple Formatting for spacing, tabular output, and floating values, we often want to format the output Java uses the C-style printf method with a format specifier and a list of values System.out.println("2.0 / 3.0 is: " / 3.0); 2.0 / 3.0 is: System.out.printf("2.0 / 3.0 is: %1.3f\n", 2.0 / 3.0); 2.0 / 3.0 is: 0.667
20 Multiple Values System.out.printf("My name is %s and I'm %d years old.\n", name, age); My name is Fred and I'm 12 years old.
21 Input input is a bit more complicated Java was invented to be a language for graphical programs the assumption was that most input would come from graphical widgets like this: Java has a pre-defined input object named in but it s awkward to use
22 Input instead, for text input, we use a helper at the top of the file we do Library Import import java.util.scanner; and then in the code we do Create Scanner Object Scanner in = new Scanner(System.in); and finally use the scanner object like this Using Scanner int age = in.nextint();
23 Example discuss Volume2.java from text section 2.3.2
COMP 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 informationDefine a method vs. calling a method. Chapter Goals. Contents 1/21/13
CHAPTER 2 Define a method vs. calling a method Line 3 defines a method called main Line 5 calls a method called println, which is defined in the Java library You will learn later how to define your own
More informationCS110: PROGRAMMING LANGUAGE I
CS110: PROGRAMMING LANGUAGE I Computer Science Department Lecture 4: Java Basics (II) A java Program 1-2 Class in file.java class keyword braces {, } delimit a class body main Method // indicates a comment.
More informationComputer Programming, I. Laboratory Manual. Experiment #2. Elementary Programming
Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #2
More informationCS111: PROGRAMMING LANGUAGE II
1 CS111: PROGRAMMING LANGUAGE II Computer Science Department Lecture 1: Introduction Lecture Contents 2 Course info Why programming?? Why Java?? Write once, run anywhere!! Java basics Input/output Variables
More informationOperators. Lecture 3 COP 3014 Spring January 16, 2018
Operators Lecture 3 COP 3014 Spring 2018 January 16, 2018 Operators Special built-in symbols that have functionality, and work on operands operand an input to an operator Arity - how many operands an operator
More informationAssoc. Prof. Dr. Marenglen Biba. (C) 2010 Pearson Education, Inc. All rights reserved.
Assoc. Prof. Dr. Marenglen Biba (C) 2010 Pearson Education, Inc. All rights reserved. Java application A computer program that executes when you use the java command to launch the Java Virtual Machine
More informationProgramming with Java
Programming with Java Data Types & Input Statement Lecture 04 First stage Software Engineering Dep. Saman M. Omer 2017-2018 Objectives q By the end of this lecture you should be able to : ü Know rules
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 informationHello World. n Variables store information. n You can think of them like boxes. n They hold values. n The value of a variable is its current contents
Variables in a programming language Basic Computation (Savitch, Chapter 2) TOPICS Variables and Data Types Expressions and Operators Integers and Real Numbers Characters and Strings Input and Output Variables
More informationCS 302: Introduction to Programming
CS 302: Introduction to Programming Lectures 2-3 CS302 Summer 2012 1 Review What is a computer? What is a computer program? Why do we have high-level programming languages? How does a high-level program
More informationChapter 2: Data and Expressions
Chapter 2: Data and Expressions CS 121 Department of Computer Science College of Engineering Boise State University April 21, 2015 Chapter 2: Data and Expressions CS 121 1 / 53 Chapter 2 Part 1: Data Types
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 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 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 informationCSCI 2010 Principles of Computer Science. Data and Expressions 08/09/2013 CSCI
CSCI 2010 Principles of Computer Science Data and Expressions 08/09/2013 CSCI 2010 1 Data Types, Variables and Expressions in Java We look at the primitive data types, strings and expressions that are
More informationCEN 414 Java Programming
CEN 414 Java Programming Instructor: H. Esin ÜNAL SPRING 2017 Slides are modified from original slides of Y. Daniel Liang WEEK 2 ELEMENTARY PROGRAMMING 2 Computing the Area of a Circle public class ComputeArea
More information12/22/11. Java How to Program, 9/e. Help you get started with Eclipse and NetBeans integrated development environments.
Java How to Program, 9/e Education, Inc. All Rights Reserved. } Java application programming } Use tools from the JDK to compile and run programs. } Videos at www.deitel.com/books/jhtp9/ Help you get started
More informationPRIMITIVE VARIABLES. CS302 Introduction to Programming University of Wisconsin Madison Lecture 3. By Matthew Bernstein
PRIMITIVE VARIABLES CS302 Introduction to Programming University of Wisconsin Madison Lecture 3 By Matthew Bernstein matthewb@cs.wisc.edu Variables A variable is a storage location in your computer Each
More informationInterpreted vs Compiled. Java Compile. Classes, Objects, and Methods. Hello World 10/6/2016. Python Interpreted. Java Compiled
Interpreted vs Compiled Python 1 Java Interpreted Easy to run and test Quicker prototyping Program runs slower Compiled Execution time faster Virtual Machine compiled code portable Java Compile > javac
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 informationdouble float char In a method: final typename variablename = expression ;
Chapter 4 Fundamental Data Types The Plan For Today Return Chapter 3 Assignment/Exam Corrections Chapter 4 4.4: Arithmetic Operations and Mathematical Functions 4.5: Calling Static Methods 4.6: Strings
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 informationChapter 2: Data and Expressions
Chapter 2: Data and Expressions CS 121 Department of Computer Science College of Engineering Boise State University January 15, 2015 Chapter 2: Data and Expressions CS 121 1 / 1 Chapter 2 Part 1: Data
More informationFUNDAMENTAL DATA TYPES
CHAPTER 2 FUNDAMENTAL DATA TYPES Copyright 2013 by John Wiley & Sons. All rights reserved. Slides by Donald W. Smith TechNeTrain.com Final Draft Oct. 15, 2011 Chapter Goals To declare and initialize variables
More informationChapter 2: Data and Expressions
Chapter 2: Data and Expressions CS 121 Department of Computer Science College of Engineering Boise State University August 21, 2017 Chapter 2: Data and Expressions CS 121 1 / 51 Chapter 1 Terminology Review
More informationI. Variables and Data Type week 3
I. Variables and Data Type week 3 variable: a named memory (i.e. RAM, which is volatile) location used to store/hold data, which can be changed during program execution in algebra: 3x + 5 = 20, x = 5,
More informationData and Expressions. Outline. Data and Expressions 12/18/2010. Let's explore some other fundamental programming concepts. Chapter 2 focuses on:
Data and Expressions Data and Expressions Let's explore some other fundamental programming concepts Chapter 2 focuses on: Character Strings Primitive Data The Declaration And Use Of Variables Expressions
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 information2/9/2012. Chapter Four: Fundamental Data Types. Chapter Goals
Chapter Four: Fundamental Data Types Chapter Goals To understand integer and floating-point numbers To recognize the limitations of the numeric types To become aware of causes for overflow and roundoff
More informationint: integers, no fractional part double: floating-point numbers (double precision) 1, -4, 0 0.5, , 4.3E24, 1E-14
int: integers, no fractional part 1, -4, 0 double: floating-point numbers (double precision) 0.5, -3.11111, 4.3E24, 1E-14 A numeric computation overflows if the result falls outside the range for the number
More informationFirst Programs. CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington
First Programs CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington 1 Output System.out.println( ) prints out something. System.out.println is the first
More informationNumerical Data. CS 180 Sunil Prabhakar Department of Computer Science Purdue University
Numerical Data CS 180 Sunil Prabhakar Department of Computer Science Purdue University Problem Write a program to compute the area and perimeter of a circle given its radius. Requires that we perform operations
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 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 informationFirst Programs. CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington
First Programs CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington 1 Output System.out.println( ) prints out something. System.out.println is the first
More informationBasic Computation. Chapter 2
Basic Computation Chapter 2 Outline Variables and Expressions The Class String Keyboard and Screen I/O Documentation and Style Variables Variables store data such as numbers and letters. Think of them
More informationComputational Expression
Computational Expression Variables, Primitive Data Types, Expressions Janyl Jumadinova 28-30 January, 2019 Janyl Jumadinova Computational Expression 28-30 January, 2019 1 / 17 Variables Variable is a name
More informationData Conversion & Scanner Class
Data Conversion & Scanner Class Quick review of last lecture August 29, 2007 ComS 207: Programming I (in Java) Iowa State University, FALL 2007 Instructor: Alexander Stoytchev Numeric Primitive Data Storing
More informationChapter 4 Fundamental Data Types. Big Java by Cay Horstmann Copyright 2009 by John Wiley & Sons. All rights reserved.
Chapter 4 Fundamental Data Types Chapter Goals To understand integer and floating-point numbers To recognize the limitations of the numeric types To become aware of causes for overflow and roundoff errors
More informationCIS 110: Introduction to Computer Programming
CIS 110: Introduction to Computer Programming Lecture 3 Express Yourself ( 2.1) 9/16/2011 CIS 110 (11fa) - University of Pennsylvania 1 Outline 1. Data representation and types 2. Expressions 9/16/2011
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 informationLecture Notes. System.out.println( Circle radius: + radius + area: + area); radius radius area area value
Lecture Notes 1. Comments a. /* */ b. // 2. Program Structures a. public class ComputeArea { public static void main(string[ ] args) { // input radius // compute area algorithm // output area Actions to
More informationLecture 9. Assignment. Logical Operations. Logical Operations - Motivation 2/8/18
Assignment Lecture 9 Logical Operations Formatted Print Printf Increment and decrement Read through 3.9, 3.10 Read 4.1. 4.2, 4.3 Go through checkpoint exercise 4.1 Logical Operations - Motivation Logical
More informationWeek 3: Objects, Input and Processing
CS 170 Java Programming 1 Week 3: Objects, Input and Processing Learning to Create Objects Learning to Accept Input Learning to Process Data What s the Plan? Topic I: Working with Java Objects Learning
More informationMODULE 02: BASIC COMPUTATION IN JAVA
MODULE 02: BASIC COMPUTATION IN JAVA Outline Variables Naming Conventions Data Types Primitive Data Types Review: int, double New: boolean, char The String Class Type Conversion Expressions Assignment
More informationPeer Instruction 1. Elementary Programming
Peer Instruction 1 Elementary Programming 0 Which of the following variable declarations will not compile? Please select the single correct answer. A. int i = 778899; B. double x = 5.43212345; C. char
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 informationProgramming in Java
320341 Programming in Java Fall Semester 2015 Lecture 2: Fundamental Structures Instructor: Jürgen Schönwälder Slides: Bendick Mahleko Outline - Program structure - Data types - Variables - Constants -
More informationIntroduction to Computer Science and Object-Oriented Programming
COMP 111 Introduction to Computer Science and Object-Oriented Programming Values Judgment Programs Manipulate Values Inputs them Stores them Calculates new values from existing ones Outputs them In Java
More informationFirst Programs. CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington
First Programs CSE 1310 Introduction to Computers and Programming Vassilis Athitsos University of Texas at Arlington 1 Output System.out.println( ) prints out something. System.out.println is the first
More informationModule 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1
Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Topics 1. Expressions 2. Operator precedence 3. Shorthand operators 4. Data/Type Conversion 1/15/19 CSE 1321 MODULE 2 2 Expressions
More informationChapter 3 Syntax, Errors, and Debugging. Fundamentals of Java
Chapter 3 Syntax, Errors, and Debugging Objectives Construct and use numeric and string literals. Name and use variables and constants. Create arithmetic expressions. Understand the precedence of different
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 information2.5 Another Application: Adding Integers
2.5 Another Application: Adding Integers 47 Lines 9 10 represent only one statement. Java allows large statements to be split over many lines. We indent line 10 to indicate that it s a continuation of
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 informationChapter 4 Fundamental Data Types. Big Java by Cay Horstmann Copyright 2009 by John Wiley & Sons. All rights reserved.
Chapter 4 Fundamental Data Types ICOM 4015: Advanced Programming Lecture 4 Reading: Chapter Four: Fundamental Data Types Big Java by Cay Horstmann Copyright 2009 by John Wiley & Sons. All rights reserved.
More informationCMPT 125: Lecture 3 Data and Expressions
CMPT 125: Lecture 3 Data and Expressions Tamara Smyth, tamaras@cs.sfu.ca School of Computing Science, Simon Fraser University January 3, 2009 1 Character Strings A character string is an object in Java,
More informationCIS133J. Working with Numbers in Java
CIS133J Working with Numbers in Java Contents: Using variables with integral numbers Using variables with floating point numbers How to declare integral variables How to declare floating point variables
More informationEntry Point of Execution: the main Method. Elementary Programming. Learning Outcomes. Development Process
Entry Point of Execution: the main Method Elementary Programming EECS1021: Object Oriented Programming: from Sensors to Actuators Winter 2019 CHEN-WEI WANG For now, all your programming exercises will
More informationCONTENTS: Compilation Data and Expressions COMP 202. More on Chapter 2
CONTENTS: Compilation Data and Expressions COMP 202 More on Chapter 2 Programming Language Levels There are many programming language levels: machine language assembly language high-level language Java,
More informationBig Java. Fifth Edition. Chapter 3 Fundamental Data Types. Cay Horstmann
Big Java Fifth Edition Cay Horstmann Chapter 3 Fundamental Data Types Chapter Goals To understand integer and floating-point numbers To recognize the limitations of the numeric types To become aware of
More informationIntroduction To Java. Chapter 1. Origins of the Java Language. Origins of the Java Language. Objects and Methods. Origins of the Java Language
Chapter 1 Getting Started Introduction To Java Most people are familiar with Java as a language for Internet applications We will study Java as a general purpose programming language The syntax of expressions
More informationChapter. Let's explore some other fundamental programming concepts
Data and Expressions 2 Chapter 5 TH EDITION Lewis & Loftus java Software Solutions Foundations of Program Design 2007 Pearson Addison-Wesley. All rights reserved Data and Expressions Let's explore some
More informationHUDSONVILLE HIGH SCHOOL COURSE FRAMEWORK
HUDSONVILLE HIGH SCHOOL COURSE FRAMEWORK COURSE / SUBJECT Introduction to Programming KEY COURSE OBJECTIVES/ENDURING UNDERSTANDINGS OVERARCHING/ESSENTIAL SKILLS OR QUESTIONS Introduction to Java Java Essentials
More informationSTUDENT LESSON A7 Simple I/O
STUDENT LESSON A7 Simple I/O Java Curriculum for AP Computer Science, Student Lesson A7 1 STUDENT LESSON A7 Simple I/O INTRODUCTION: The input and output of a program s data is usually referred to as I/O.
More informationPrimitive Data Types: Intro
Primitive Data Types: Intro Primitive data types represent single values and are built into a language Java primitive numeric data types: 1. Integral types (a) byte (b) int (c) short (d) long 2. Real types
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 informationJava Reference Card. 1. Classes. 2. Methods. 3. Conditionals. 4. Operators
Java Reference Card 1. Classes The following is an example of a main class: public class Calculator { public static void main(string[] args) { and the following is an example of a utility class (with no
More informationKey Concept: all programs can be broken down to a combination of one of the six instructions Assignment Statements can create variables to represent
Programming 2 Key Concept: all programs can be broken down to a combination of one of the six instructions Assignment Statements can create variables to represent information Input can receive information
More informationOperators. Java operators are classified into three categories:
Operators Operators are symbols that perform arithmetic and logical operations on operands and provide a meaningful result. Operands are data values (variables or constants) which are involved in operations.
More informationCSE 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 informationJava Console Input/Output The Basics. CGS 3416 Spring 2018
Java Console Input/Output The Basics CGS 3416 Spring 2018 Console Output System.out out is a PrintStream object, a static data member of class System. This represents standard output Use this object to
More informationA variable is a name for a location in memory A variable must be declared
Variables A variable is a name for a location in memory A variable must be declared, specifying the variable's name and the type of information that will be held in it data type variable name int total;
More informationSimple Java Reference
Simple Java Reference This document provides a reference to all the Java syntax used in the Computational Methods course. 1 Compiling and running... 2 2 The main() method... 3 3 Primitive variable types...
More informationChapter 2 Elementary Programming
Chapter 2 Elementary Programming Part I 1 Motivations In the preceding chapter, you learned how to create, compile, and run a Java program. Starting from this chapter, you will learn how to solve practical
More informationUnits 0 to 4 Groovy: Introduction upto Arrays Revision Guide
Units 0 to 4 Groovy: Introduction upto Arrays Revision Guide Second Year Edition Name: Tutorial Group: Groovy can be obtained freely by going to http://groovy-lang.org/download Page 1 of 8 Variables Variables
More informationAdvanced Computer Programming
Programming in the Small I: Names and Things (Part II) 188230 Advanced Computer Programming Asst. Prof. Dr. Kanda Runapongsa Saikaew (krunapon@kku.ac.th) Department of Computer Engineering Khon Kaen University
More informationCS5000: Foundations of Programming. Mingon Kang, PhD Computer Science, Kennesaw State University
CS5000: Foundations of Programming Mingon Kang, PhD Computer Science, Kennesaw State University Overview of Source Code Components Comments Library declaration Classes Functions Variables Comments Can
More informationSection 2: Introduction to Java. Historical note
The only way to learn a new programming language is by writing programs in it. - B. Kernighan & D. Ritchie Section 2: Introduction to Java Objectives: Data Types Characters and Strings Operators and Precedence
More informationBasic Computation. Chapter 2
Walter Savitch Frank M. Carrano Basic Computation Chapter 2 Outline Variables and Expressions The Class String Keyboard and Screen I/O Documentation and Style Variables Variables store data such as numbers
More informationWhat did we talk about last time? Examples switch statements
Week 4 - Friday What did we talk about last time? Examples switch statements History of computers Hardware Software development Basic Java syntax Output with System.out.print() Mechanical Calculation
More informationTester vs. Controller. Elementary Programming. Learning Outcomes. Compile Time vs. Run Time
Tester vs. Controller Elementary Programming EECS1022: Programming for Mobile Computing Winter 2018 CHEN-WEI WANG For effective illustrations, code examples will mostly be written in the form of a tester
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 informationWeek 2: Console I/O and Operators Arithmetic Operators. Integer Division. Arithmetic Operators. Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.
Week 2: Console I/O and Operators Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.1) CS 1428 Fall 2014 Jill Seaman 1 2.14 Arithmetic Operators An operator is a symbol that tells the computer to perform specific
More informationExpressions. Eric Roberts Handout #3 CSCI 121 January 30, 2019 Expressions. Grace Murray Hopper. Arithmetic Expressions.
Eric Roberts Handout #3 CSCI 121 January 30, 2019 Expressions Grace Murray Hopper Expressions Eric Roberts CSCI 121 January 30, 2018 Grace Hopper was one of the pioneers of modern computing, working with
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 informationDATA TYPES AND EXPRESSIONS
DATA TYPES AND EXPRESSIONS Outline Variables Naming Conventions Data Types Primitive Data Types Review: int, double New: boolean, char The String Class Type Conversion Expressions Assignment Mathematical
More information1. What type of error produces incorrect results but does not prevent the program from running? a. syntax b. logic c. grammatical d.
Gaddis: Starting Out with Python, 2e - Test Bank Chapter Two MULTIPLE CHOICE 1. What type of error produces incorrect results but does not prevent the program from running? a. syntax b. logic c. grammatical
More informationIntroduction to Java Applications
2 What s in a name? that which we call a rose By any other name would smell as sweet. William Shakespeare When faced with a decision, I always ask, What would be the most fun? Peggy Walker Take some more
More informationChapter 02: Using Data
True / False 1. A variable can hold more than one value at a time. ANSWER: False REFERENCES: 54 2. The int data type is the most commonly used integer type. ANSWER: True REFERENCES: 64 3. Multiplication,
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 informationElementary Programming
Elementary Programming EECS1022: Programming for Mobile Computing Winter 2018 CHEN-WEI WANG Learning Outcomes Learn ingredients of elementary programming: data types [numbers, characters, strings] literal
More informationWhat we will do today Explain and look at examples of. Programs that examine data. Data types. Topic 4. variables. expressions. assignment statements
Topic 4 Variables Once a programmer has understood the use of variables, he has understood the essence of programming -Edsger Dijkstra What we will do today Explain and look at examples of primitive data
More informationCOMP 110 Introduction to Programming. What did we discuss?
COMP 110 Introduction to Programming Fall 2015 Time: TR 9:30 10:45 Room: AR 121 (Hanes Art Center) Jay Aikat FB 314, aikat@cs.unc.edu Previous Class What did we discuss? COMP 110 Fall 2015 2 1 Today Announcements
More informationLecture 6. Assignments. Summary - Variables. Summary Program Parts 1/29/18. Reading: 3.1, 3.2, 3.3, 3.4
Assignments Lecture 6 Complete for Project 1 Reading: 3.1, 3.2, 3.3, 3.4 Summary Program Parts Summary - Variables Class Header (class name matches the file name prefix) Class Body Because this is a program,
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 informationSection 2.2 Your First Program in Java: Printing a Line of Text
Chapter 2 Introduction to Java Applications Section 2.2 Your First Program in Java: Printing a Line of Text 2.2 Q1: End-of-line comments that should be ignored by the compiler are denoted using a. Two
More informationExam 1 Prep. Dr. Demetrios Glinos University of Central Florida. COP3330 Object Oriented Programming
Exam 1 Prep Dr. Demetrios Glinos University of Central Florida COP3330 Object Oriented Programming Progress Exam 1 is a Timed Webcourses Quiz You can find it from the "Assignments" link on Webcourses choose
More information2: Basics of Java Programming
2: Basics of Java Programming CSC 1051 Algorithms and Data Structures I Dr. Mary-Angela Papalaskari Department of Computing Sciences Villanova University Course website: www.csc.villanova.edu/~map/1051/
More information