Basic Operations jgrasp debugger Writing Programs & Checkstyle
|
|
- Lora Fleming
- 5 years ago
- Views:
Transcription
1 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 the options to make figuring out the result easier? 67
2 Primitive Data Types boolean stores true (1) or false (0) values byte holds integer in one byte = 8 bits char holds a single character short, int, long hold integers of varying sizes float, double hold real numbers (floating point) Variables have 4 features: name, type, location in memory and value (once assigned) 68
3 Integer Representation literal values are whole numbers: 8, 23, -102 base ten values are converted to binary left-most bit is for the sign 0 means positive 1 means negative each type (byte, short, int, long) has different size in memory int is used most commonly 69
4 Character Representation char literals must be in single quotes: 'A', '4', '+' each character is assigned an integer code full set is Unicode System extension of original ASCII system decimal integer codes are converted to binary 'A' to 'Z' have consecutive codes (65-90) 'a' to 'z' have consecutive codes (97-122) '0' to '9' have consecutive codes (48-57) Section 3.2 in textbook 70
5 Real Number Representation float literals must have f: 10f, F, f double literals (more common) can be floating: 10.3, , or scientific notation: 1.03e1, e2,.23345e-1 stored internally in two parts: =.12345e is mantissa converted to binary 3 is exponent converted to binary double has twice as many mantissa bits as a float, so you get more precision 71
6 Arithmetic Operations addition: val1 + val2 subtraction: val1 val2 multiplication: val1 * val2 division result depends on operand types: int1 / int2 gives a whole number result (div) if float or double as one operand, you get a real number result division modulus for integers: val1 % val2 gives whole number remainder after val1 / val2 72
7 Evaluating Expressions The data type of each binary operation result depends on the data type of the operands The "lower" number type operand is implicitly converted to the "higher" number type operand The result is the same type as the "higher" For example: int + int => int int float => float double / int => double Operator precedence (next slide) determines the order of the operations in a mixed expression 73
8 Operators have precedence () do inside parentheses first - negation, casting: (int), (double), (char) etc. * multiplication, / division, % mod (remainders) + addition, - subtraction = assignment Section 2.9 in textbook 74
9 Misc. data items and operator combinations escape sequences for special characters: \" \\ \n \t final for named constants assignment combinations: +=, -=, *=, /=, %= ++, -- in prefix or postfix mode 75
10 Arithmetic Activity Look at code/arithmetic.java for examples of type conversions and uses of arithmetic operators. Download the file. Use the jgrasp debugger to step through and annotate each line of code (next to the //) with the values that are being assigned. Submit your annotated arithmetic.java file on Blackboard in Classwork Submission as c02. 76
11 Writing Java code [Make sure your pseudocode is handy!] Start with outer structure: class, main, other methods? Declare some variables Get input, display (incorrect) output Fill in the missing pieces, one task at a time. Compile, [checkstyle] and run at each step. 77
12 Java program template import java.util.scanner; /** Documentation. */ public class ClassName { /** Documentation. args (not used) */ public static void main(string[] args) { // executable statements } } // other method definitions can go here or above main 78
13 Recall: Executable statements Variable declarations Assignment statements Method calls Decision statements Loops 79
14 Variable Declarations For primitives and strings: type identifier; // no initialization type ident = value; // with initialization type ident1, ident2, ident3; // all same type type ident1 = value1, ident2, ident3 = value3; // ident2 was not initialized For class types (objects): ClassName varname; // no initialization ClassName varname = new ClassName(params); 80
15 Assignment statements A single '=' symbol is used We pronounce it "gets" Store value in varname: varname = value; Evaluate expression and store result in varname: varname = expression; Expressions can be any valid combination of operators, variables, literal values and method calls 81
16 Method calls Can vary depending on where and how the method is defined. If static and defined in same class: methodname(params) If static and defined in another class: ClassName.methodName(params) Math.round(value) If belongs to a class and requires an object: objectvar.methodname(params) System.out.println("hello"); mystring.charat(0) 82
17 Checkstyle Tool to ensure that our code conforms to a standard style (similar to the Java API code) Specific style for this course is in file See notes on homepage and hw2 to download, configure and use with jgrasp Advantage is it will help you learn to be better programmers and make debugging easier! 83
18 Checkstyle Details how to install & configure running on arithmetic.java common errors missing javadoc comment (must start with /**) file/classname must start with Capital letter { must be on same line as the block control statement indentation use jgrasp control structure diagram to fix magic numbers use final to fix read documentation linked from main course page 84
19 Homework Review Solutions for #1 Homework 2 start the formulas 85
Data 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 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 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 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 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 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 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 informationVisual C# Instructor s Manual Table of Contents
Visual C# 2005 2-1 Chapter 2 Using Data At a Glance Instructor s Manual Table of Contents Overview Objectives s Quick Quizzes Class Discussion Topics Additional Projects Additional Resources Key Terms
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 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 information3. Java - Language Constructs I
Educational Objectives 3. Java - Language Constructs I Names and Identifiers, Variables, Assignments, Constants, Datatypes, Operations, Evaluation of Expressions, Type Conversions You know the basic blocks
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 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 informationCOSC 243. Data Representation 3. Lecture 3 - Data Representation 3 1. COSC 243 (Computer Architecture)
COSC 243 Data Representation 3 Lecture 3 - Data Representation 3 1 Data Representation Test Material Lectures 1, 2, and 3 Tutorials 1b, 2a, and 2b During Tutorial a Next Week 12 th and 13 th March If you
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 information4 Programming Fundamentals. Introduction to Programming 1 1
4 Programming Fundamentals Introduction to Programming 1 1 Objectives At the end of the lesson, the student should be able to: Identify the basic parts of a Java program Differentiate among Java literals,
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 information1 class Lecture2 { 2 3 "Elementray Programming" / References 8 [1] Ch. 2 in YDL 9 [2] Ch. 2 and 3 in Sharan 10 [3] Ch.
1 class Lecture2 { 2 3 "Elementray Programming" 4 5 } 6 7 / References 8 [1] Ch. 2 in YDL 9 [2] Ch. 2 and 3 in Sharan 10 [3] Ch. 2 in HS 11 / Zheng-Liang Lu Java Programming 41 / 68 Example Given the radius
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 informationCOMP-202: Foundations of Programming
COMP-202: Foundations of Programming Lecture 3: Basic data types Jackie Cheung, Winter 2016 Review: Hello World public class HelloWorld { } public static void main(string[] args) { } System.out.println("Hello,
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 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 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 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 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 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 informationJAVA OPERATORS GENERAL
JAVA OPERATORS GENERAL Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators
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 informationZheng-Liang Lu Java Programming 45 / 79
1 class Lecture2 { 2 3 "Elementray Programming" 4 5 } 6 7 / References 8 [1] Ch. 2 in YDL 9 [2] Ch. 2 and 3 in Sharan 10 [3] Ch. 2 in HS 11 / Zheng-Liang Lu Java Programming 45 / 79 Example Given a radius
More informationJAVA Programming Fundamentals
Chapter 4 JAVA Programming Fundamentals By: Deepak Bhinde PGT Comp.Sc. JAVA character set Character set is a set of valid characters that a language can recognize. It may be any letter, digit or any symbol
More informationfalse, import, new 1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4
1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4 5 } 6 7 // Keywords: 8 byte, short, int, long, char, float, double, boolean, true, false, import, new Zheng-Liang Lu Java Programming 44
More informationBuilding Java Programs
Building Java Programs Chapter 2 Lecture 2-1: Expressions and Variables reading: 2.1-2.2 1 Data and expressions reading: 2.1 self-check: 1-4 videos: Ch. 2 #1 2 Data types type: A category or set of data
More informationInformation Science 1
Information Science 1 Simple Calcula,ons Week 09 College of Information Science and Engineering Ritsumeikan University Topics covered l Terms and concepts from Week 8 l Simple calculations Documenting
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 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 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 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 informationCHAPTER 3 Expressions, Functions, Output
CHAPTER 3 Expressions, Functions, Output More Data Types: Integral Number Types short, long, int (all represent integer values with no fractional part). Computer Representation of integer numbers - Number
More informationARG! Language Reference Manual
ARG! Language Reference Manual Ryan Eagan, Mike Goldin, River Keefer, Shivangi Saxena 1. Introduction ARG is a language to be used to make programming a less frustrating experience. It is similar to C
More informationExpressions and Data Types CSC 121 Fall 2015 Howard Rosenthal
Expressions and Data Types CSC 121 Fall 2015 Howard Rosenthal Lesson Goals Understand the basic constructs of a Java Program Understand how to use basic identifiers Understand simple Java data types and
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 informationBuilding Java Programs
Building Java Programs Chapter 2 Lecture 2-1: Expressions and Variables reading: 2.1-2.2 Copyright 2009 by Pearson Education Data and expressions reading: 2.1 self-check: 1-4 videos: Ch. 2 #1 Copyright
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 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 informationElementary Programming. CSE 114, Computer Science 1 Stony Brook University
Elementary Programming CSE 114, Computer Science 1 Stony Brook University http://www.cs.stonybrook.edu/~cse114 1 Variables In a program, the variables store data Primitive type variables store single pieces
More informationCS 106 Introduction to Computer Science I
CS 106 Introduction to Computer Science I 05 / 31 / 2017 Instructor: Michael Eckmann Today s Topics Questions / Comments? recap and some more details about variables, and if / else statements do lab work
More informationfalse, import, new 1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4
1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4 5 } 6 7 // Keywords: 8 byte, short, int, long, char, float, double, boolean, true, false, import, new Zheng-Liang Lu Java Programming 44
More informationfalse, import, new 1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4
1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4 5 } 6 7 // Keywords: 8 byte, short, int, long, char, float, double, boolean, true, false, import, new Zheng-Liang Lu Java Programming 44
More informationJava Foundations: Introduction to Program Design & Data Structures, 4e John Lewis, Peter DePasquale, Joseph Chase Test Bank: Chapter 2
Java Foundations Introduction to Program Design and Data Structures 4th Edition Lewis TEST BANK Full download at : https://testbankreal.com/download/java-foundations-introduction-toprogram-design-and-data-structures-4th-edition-lewis-test-bank/
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 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 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 informationMore Programming Constructs -- Introduction
More Programming Constructs -- Introduction We can now examine some additional programming concepts and constructs Chapter 5 focuses on: internal data representation conversions between one data type and
More informationPrimitive Data, Variables, and Expressions; Simple Conditional Execution
Unit 2, Part 1 Primitive Data, Variables, and Expressions; Simple Conditional Execution Computer Science S-111 Harvard University David G. Sullivan, Ph.D. Overview of the Programming Process Analysis/Specification
More informationChapter 6 Primitive types
Chapter 6 Primitive types Lesson page 6-1. Primitive types Question 1. There are an infinite number of integers, so it would be too ineffient to have a type integer that would contain all of them. Question
More informationTools : The Java Compiler. The Java Interpreter. The Java Debugger
Tools : The Java Compiler javac [ options ] filename.java... -depend: Causes recompilation of class files on which the source files given as command line arguments recursively depend. -O: Optimizes code,
More informationChapter 2 Primitive Data Types and Operations. Objectives
Chapter 2 Primitive Data Types and Operations Prerequisites for Part I Basic computer skills such as using Windows, Internet Explorer, and Microsoft Word Chapter 1 Introduction to Computers, Programs,
More informationLecture Set 2: Starting Java
Lecture Set 2: Starting Java 1. Java Concepts 2. Java Programming Basics 3. User output 4. Variables and types 5. Expressions 6. User input 7. Uninitialized Variables 0 This Course: Intro to Procedural
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 informationBuilding Java Programs. Chapter 2: Primitive Data and Definite Loops
Building Java Programs Chapter 2: Primitive Data and Definite Loops Copyright 2008 2006 by Pearson Education 1 Lecture outline data concepts Primitive types: int, double, char (for now) Expressions: operators,
More informationfalse, import, new 1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4
1 class Lecture2 { 2 3 "Data types, Variables, and Operators" 4 5 } 6 7 // Keywords: 8 byte, short, int, long, char, float, double, boolean, true, false, import, new Zheng-Liang Lu Java Programming 45
More informationDatatypes, Variables, and Operations
Datatypes, Variables, and Operations 1 Primitive Type Classification 2 Numerical Data Types Name Range Storage Size byte 2 7 to 2 7 1 (-128 to 127) 8-bit signed short 2 15 to 2 15 1 (-32768 to 32767) 16-bit
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 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 informationLecture Set 2: Starting Java
Lecture Set 2: Starting Java 1. Java Concepts 2. Java Programming Basics 3. User output 4. Variables and types 5. Expressions 6. User input 7. Uninitialized Variables 0 This Course: Intro to Procedural
More informationCS Programming I: Primitives and Expressions
CS 200 - Programming I: Primitives and Expressions Marc Renault Department of Computer Sciences University of Wisconsin Madison Spring 2018 TopHat Sec 3 (AM) Join Code: 427811 TopHat Sec 4 (PM) Join Code:
More informationCOMP-202: Foundations of Programming. Lecture 2: Variables, and Data Types Sandeep Manjanna, Summer 2015
COMP-202: Foundations of Programming Lecture 2: Variables, and Data Types Sandeep Manjanna, Summer 2015 Announcements Midterm Exams on 4 th of June (12:35 14:35) Room allocation will be announced soon
More informationJava provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups:
Basic Operators Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators
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 informationJava Programming Fundamentals. Visit for more.
Chapter 4: Java Programming Fundamentals Informatics Practices Class XI (CBSE Board) Revised as per CBSE Curriculum 2015 Visit www.ip4you.blogspot.com for more. Authored By:- Rajesh Kumar Mishra, PGT (Comp.Sc.)
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 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 informationChapter 7 Arithmetic
Chapter 7 Arithmetic 7-1 Arithmetic in C++ Arithmetic expressions are made up of constants, variables, operators and parentheses. The arithmetic operators in C++ are as follows + (addition) - (subtraction)
More informationCOSC 236 Section 101 Computer Science 1 -- Prof. Michael A. Soderstrand
COSC 236 Section 101 Computer Science 1 -- Prof. Michael A. Soderstrand COSC 236 Web Site I have decided to keep this site for the whole semester I still hope to have blackboard up and running, but you
More informationChapter 2 Working with Data Types and Operators
JavaScript, Fourth Edition 2-1 Chapter 2 Working with Data Types and Operators At a Glance Instructor s Manual Table of Contents Overview Objectives Teaching Tips Quick Quizzes Class Discussion Topics
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 informationTwo Types of Types. Primitive Types in Java. Using Primitive Variables. Class #07: Java Primitives. Integer types.
Class #07: Java Primitives Software Design I (CS 120): M. Allen, 13 Sep. 2018 Two Types of Types So far, we have mainly been dealing with objects, like DrawingGizmo, Window, Triangle, that are: 1. Specified
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 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 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 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 informationCS11 Java. Fall Lecture 1
CS11 Java Fall 2006-2007 Lecture 1 Welcome! 8 Lectures Slides posted on CS11 website http://www.cs.caltech.edu/courses/cs11 7-8 Lab Assignments Made available on Mondays Due one week later Monday, 12 noon
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 informationObjects and Types. COMS W1007 Introduction to Computer Science. Christopher Conway 29 May 2003
Objects and Types COMS W1007 Introduction to Computer Science Christopher Conway 29 May 2003 Java Programs A Java program contains at least one class definition. public class Hello { public static void
More informationA Java program contains at least one class definition.
Java Programs Identifiers Objects and Types COMS W1007 Introduction to Computer Science Christopher Conway 29 May 2003 A Java program contains at least one class definition. public class Hello { public
More informationValues, Variables, Types & Arithmetic Expressions. Agenda
Values, Variables, Types & Arithmetic Expressions Lecture 2 Object-Oriented Programming Agenda Inside of a Computer Value Variable Data Types in Java Literals Identifiers Type conversions Manipulating
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 informationJava Notes. 10th ICSE. Saravanan Ganesh
Java Notes 10th ICSE Saravanan Ganesh 13 Java Character Set Character set is a set of valid characters that a language can recognise A character represents any letter, digit or any other sign Java uses
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 informationData Types. 1 You cannot change the type of the variable after declaration. Zheng-Liang Lu Java Programming 52 / 87
Data Types Java is a strongly-typed 1 programming language. Every variable has a type. Also, every (mathematical) expression has a type. There are two categories of data types: primitive data types, and
More informationChapter 2 Using Data. Instructor s Manual Table of Contents. At a Glance. A Guide to this Instructor s Manual:
Java Programming, Eighth Edition 2-1 Chapter 2 Using Data A Guide to this Instructor s Manual: We have designed this Instructor s Manual to supplement and enhance your teaching experience through classroom
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 informationLecture 2. COMP1406/1006 (the Java course) Fall M. Jason Hinek Carleton University
Lecture 2 COMP1406/1006 (the Java course) Fall 2013 M. Jason Hinek Carleton University today s agenda a quick look back (last Thursday) assignment 0 is posted and is due this Friday at 2pm Java compiling
More informationIntroduction to Computer Programming
Introduction to Computer Programming Lecture 2- Primitive Data and Stepwise Refinement Data Types Type - A category or set of data values. Constrains the operations that can be performed on data Many languages
More informationProgramming Language Basics
Programming Language Basics Lecture Outline & Notes Overview 1. History & Background 2. Basic Program structure a. How an operating system runs a program i. Machine code ii. OS- specific commands to setup
More informationECE 122 Engineering Problem Solving with Java
ECE 122 Engineering Problem Solving with Java Lecture 3 Expression Evaluation and Program Interaction Outline Problem: How do I input data and use it in complicated expressions Creating complicated expressions
More informationExercise: Using Numbers
Exercise: Using Numbers Problem: You are a spy going into an evil party to find the super-secret code phrase (made up of letters and spaces), which you will immediately send via text message to your team
More informationJava enum, casts, and others (Select portions of Chapters 4 & 5)
Enum or enumerates types Java enum, casts, and others (Select portions of Chapters 4 & 5) Sharma Chakravarthy Information Technology Laboratory (IT Lab) Computer Science and Engineering Department The
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 informationCHAPTER 2 Java Fundamentals
CHAPTER 2 Java Fundamentals Copyright 2016 Pearson Education, Inc., Hoboken NJ Chapter Topics Chapter 2 discusses the following main topics: The Parts of a Java Program The print and println Methods, and
More information