ACS-1903 Basic program structure Feb 16, 2017
|
|
- Jared Thomas
- 5 years ago
- Views:
Transcription
1 Problem: Suppose we need a program to calculate someone s net pay. For input the program requires a name, gross pay, deductions and a tax rate. The output comprises the name, gross pay, deductions, taxes paid, and net pay. The program determines the taxes to be paid and the net pay (i.e. the processing) as follows: taxes paid is (gross pay deductions) * tax rate net pay is gross pay deductions taxes paid Variable names in Java cannot have spaces in them and so the usual names given for the above concepts are: taxespaid, grosspay, deductions, taxrate and netpay. The naming convention for variables is to start with lower case and then capitalize the first letter of subsequent words. The above calculations are expressed in Java using assignment statements: taxespaid = (grosspay deductions) * taxrate netpay = grosspay deductions taxespaid Java considers = to be the assignment operator. Whatever the right-hand-side evaluates to is assigned to the variable on the left-hand-side. The = operator has the lowest priority and so the assignment is the last thing to be done when statements like the above execute. A recommended programming practice is to develop code in small steps. In the following we show how someone could develop the code iteratively: 1. Add a little bit of code 2. Compile 3. Debug 4. Repeat the above until all requirements are implemented.
2 Step 1: Code the application class with no code in the main method. Create a new class in a Java project, and edit your code to be: Make sure the code you enter compiles with no syntax errors. Java has keywords such as public, class, static, and void that must be entered in lowercase. Punctuation comprises { and, ( and ), and [ and ] ; these must all appear in pairs.
3 Step 2: Get the user s name and display the name. We will use standard input and output for this. That is, we will use a Scanner object and System.out. To get the user s name we first of all prompt the user and then get the value entered. The code below does this note new lines are highlighted in bold text: There are several points to note about the highlighted lines above: The first line is called an import statement. It is necessary to include as we must inform the compiler where to find a definition of the Scanner class. The lines that begin // are single-line comments. Their purpose is to help humans read code these lines are ignored by a compiler. Some programmers will use these to help others understand how the code has been organized. The line declares a variable named keyboard to be of type Scanner. On the right-hand-side of the = sign is how one instantiates a Scanner object that is standard input. The line causes output to be written to the standard output device (BlueJ s terminal window). Obviously this informs the user to use the keyboard to enter their name. The next line is an assignment statement: When this line executes the expression keyboard.next() must be evaluated. This expression has no value until the user types on the keyboard and presses the enter button. So the effect is that the program is paused until the moment the user completes his/her action. The line displays the value of the expression enclosed in parentheses on the standard output device. Note the argument being passed in to the println method is "Name: "+name In this situation the + operator is called string catenation (one string is appended to the other). The + operator works differently depending on the type involved (numbers will be added together, strings will be catenated).
4 Step 3: Get the gross pay from the user. To add this functionality to our program we need another prompt and another action to get the gross pay from the user. Suppose a user might enter gross pay with a decimal point (e.g ); to allow this we will use the double datatype for gross pay, and the nextdouble method of the Scanner class. The code below does this note the new lines are highlighted in bold text: Something to note about the lines above: The line uses the nextdouble method of the Scanner class. If a user might supply a numeric value that has a decimal point we must use this method.
5 Step 4: Get the deductions from the user. The code to do this is highlighted below: // get deductions System.out.println("enter deductions:"); double deductions = keyboard.nextdouble(); System.out.println("Deductions: "+grosspay);
6 Step 5: Get the tax rate from the user. The code to do this is highlighted below: // get deductions System.out.println("enter deductions:"); double deductions = keyboard.nextdouble(); // get tax rate System.out.println("enter the tax rate:"); double taxrate = keyboard.nextdouble(); System.out.println("Deductions: "+deductions);
7 Step 6: Calculate and display the taxes to be paid. The code to do this is highlighted below: // get deductions System.out.println("enter deductions:"); double deductions = keyboard.nextdouble(); // get tax rate System.out.println("enter the tax rate:"); double taxrate = keyboard.nextdouble(); // calculate the taxes to be paid double taxespaid = (grosspay - deductions) * taxrate; System.out.println("Deductions: "+deductions); System.out.println("Taxes Paid: "+taxespaid); The statement (grosspay deductions) * taxrate; shows the use of the * operator for multiplication and the use of parentheses to create a subexpression. Sub-expressions are always evaluated first. Can you see why a sub-expression is necessary here?
8 Step 7: Calculate and display the net pay. The added code is highlighted below: // get deductions System.out.println("enter deductions:"); double deductions = keyboard.nextdouble(); // get tax rate System.out.println("enter the tax rate:"); double taxrate = keyboard.nextdouble(); // calculate the taxes to be paid double taxespaid = (grosspay - deductions) * taxrate; // calculate the net pay double netpay = grosspay - deductions - taxespaid; System.out.println("Deductions: "+deductions); System.out.println("Taxes Paid: "+taxespaid); System.out.println("Net pay: "+netpay);
1 Introduction Java, the beginning Java Virtual Machine A First Program BlueJ Raspberry Pi...
Contents 1 Introduction 3 1.1 Java, the beginning.......................... 3 1.2 Java Virtual Machine........................ 4 1.3 A First Program........................... 4 1.4 BlueJ.................................
More informationChapter 1 Lab Algorithms, Errors, and Testing
Chapter 1 Lab Algorithms, Errors, and Testing Lab Objectives Be able to write an algorithm Be able to compile a Java program Be able to execute a Java program using the Sun JDK or a Java IDE Be able to
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 informationJava with BlueJ. Ron McFadyen
Java with BlueJ Ron McFadyen September 4, 2017 2 c 2016 Ron McFadyen Department of Applied Computer Science University of Winnipeg 515 Portage Avenue Winnipeg, Manitoba, Canada R3B 2E9 r.mcfadyen@uwinnipeg.ca
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 informationChapter 2: Input, Processing, and Output
Chapter 2: Input, Processing, and Output Starting Out with Programming Logic & Design Second Edition by Tony Gaddis Copyright 2010 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter Topics
More informationEvaluating the Style of your programs
Evaluating the Style of your programs Objectives At the end of this exercise, students will: Roles Be able to evaluate a program for conformance to style guide for the class. Be able to evaluate arithmetic
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 informationVariables and numeric types
s s and numeric types Comp Sci 1570 to C++ types Outline s types 1 2 s 3 4 types 5 6 Outline s types 1 2 s 3 4 types 5 6 s types Most programs need to manipulate data: input values, output values, store
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 informationCS 152: Data Structures with Java Hello World with the IntelliJ IDE
CS 152: Data Structures with Java Hello World with the IntelliJ IDE Instructor: Joel Castellanos e-mail: joel.unm.edu Web: http://cs.unm.edu/~joel/ Office: Electrical and Computer Engineering building
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 informationObject-Oriented Programming in Java
CSCI/CMPE 3326 Object-Oriented Programming in Java Class, object, member field and method, final constant, format specifier, file I/O Dongchul Kim Department of Computer Science University of Texas Rio
More informationLogic & program control part 2: Simple selection structures
Logic & program control part 2: Simple selection structures Summary of logical expressions in Java boolean expression means an expression whose value is true or false An expression is any valid combination
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 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 informationSNS COLLEGE OF ENGINEERING
SNS COLLEGE OF ENGINEERING DEPARTMENT OF CSE Presented By Thillaiarasu.N SCRAMBLE 2 Solution 3 What is Pseudocode? 4 Consists of: Short Readable Formally styled English language Used for: Explaining the
More informationAP Computer Science Unit 1. Writing Programs Using BlueJ
AP Computer Science Unit 1. Writing Programs Using BlueJ 1. Open up BlueJ. Click on the Project menu and select New Project. You should see the window on the right. Navigate to wherever you plan to save
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 informationChapter 1: Why Program? Main Hardware Component Categories 8/23/2014. Main Hardware Component Categories: Why Program?
Chapter 1: Introduction to Computers and Programming 1.1 Why Program? Why Program? Computer programmable machine designed to follow instructions Program instructions in computer memory to make it do something
More informationThe name of our class will be Yo. Type that in where it says Class Name. Don t hit the OK button yet.
Mr G s Java Jive #2: Yo! Our First Program With this handout you ll write your first program, which we ll call Yo. Programs, Classes, and Objects, Oh My! People regularly refer to Java as a language that
More informationJava How to Program, 10/e. Copyright by Pearson Education, Inc. All Rights Reserved.
Java How to Program, 10/e Education, Inc. All Rights Reserved. Each class you create becomes a new type that can be used to declare variables and create objects. You can declare new classes as needed;
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 informationFundamentals of Programming Session 4
Fundamentals of Programming Session 4 Instructor: Reza Entezari-Maleki Email: entezari@ce.sharif.edu 1 Fall 2011 These slides are created using Deitel s slides, ( 1992-2010 by Pearson Education, Inc).
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 informationIntroduction to Java Unit 1. Using BlueJ to Write Programs
Introduction to Java Unit 1. Using BlueJ to Write Programs 1. Open up BlueJ. Click on the Project menu and select New Project. You should see the window on the right. Navigate to wherever you plan to save
More informationFirst Visual Basic Lab Paycheck-V1.0
VISUAL BASIC LAB ASSIGNMENT #1 First Visual Basic Lab Paycheck-V1.0 Copyright 2013 Dan McElroy Paycheck-V1.0 The purpose of this lab assignment is to enter a Visual Basic project into Visual Studio and
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 informationLecture 6. Assignments. Java Scanner. User Input 1/29/18. Reading: 2.12, 2.13, 3.1, 3.2, 3.3, 3.4
Assignments Reading: 2.12, 2.13, 3.1, 3.2, 3.3, 3.4 Lecture 6 Complete for Lab 4, Project 1 Note: Slides 12 19 are summary slides for Chapter 2. They overview much of what we covered but are not complete.
More informationChapter 1: Introduction to Computers and Programming
Chapter 1: Introduction to Computers and Programming 1.1 Why Program? Why Program? Computer programmable machine designed to follow instructions Program instructions in computer memory to make it do something
More informationOver and Over Again GEEN163
Over and Over Again GEEN163 There is no harm in repeating a good thing. Plato Homework A programming assignment has been posted on Blackboard You have to convert three flowcharts into programs Upload the
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 informationRobots. Byron Weber Becker. chapter 6
Using Variables Robots Learning to Program with Java Byron Weber Becker chapter 6 Announcements (Oct 5) Chapter 6 You don t have to spend much time on graphics in Ch6 Just grasp the concept Reminder: Reading
More informationCOMP 202 Java in one week
CONTENTS: Basics of Programming Variables and Assignment Data Types: int, float, (string) Example: Implementing a calculator COMP 202 Java in one week The Java Programming Language A programming language
More informationUsing Classes. GEEN163 Introduction to Computer Programming
Using Classes GEEN163 Introduction to Computer Programming The history of all previous societies has been the history of class struggles. Karl Marx Programming Assignment The first programming assignment
More informationCOSC 123 Computer Creativity. Introduction to Java. Dr. Ramon Lawrence University of British Columbia Okanagan
COSC 123 Computer Creativity Introduction to Java Dr. Ramon Lawrence University of British Columbia Okanagan ramon.lawrence@ubc.ca Key Points 1) Introduce Java, a general-purpose programming language,
More informationProblem Solving With Loops
To appreciate the value of loops, take a look at the following example. This program will calculate the average of 10 numbers input by the user. Without a loop, the three lines of code that prompt the
More informationAP Computer Science Unit 1. Writing Programs Using BlueJ
AP Computer Science Unit 1. Writing Programs Using BlueJ 1. Open up BlueJ. Click on the Project menu and select New Project. You should see the window on the right. Navigate to wherever you plan to save
More informationProblem Solving. Chapter Problem Solving. Analysis (inquiry, examination, study) Goal
Chapter 1 Problem Solving Goal Introduce a three step process that outlines the development of a program that runs on a computer. Show an example of a good old-fashioned console input/output program. 1.1
More informationOct Decision Structures cont d
Oct. 29 - Decision Structures cont d Programming Style and the if Statement Even though an if statement usually spans more than one line, it is really one statement. For instance, the following if statements
More informationChapter 4 Defining Classes I
Chapter 4 Defining Classes I This chapter introduces the idea that students can create their own classes and therefore their own objects. Introduced is the idea of methods and instance variables as the
More informationConstants. Why Use Constants? main Method Arguments. CS256 Computer Science I Kevin Sahr, PhD. Lecture 25: Miscellaneous
CS256 Computer Science I Kevin Sahr, PhD Lecture 25: Miscellaneous 1 main Method Arguments recall the method header of the main method note the argument list public static void main (String [] args) we
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 informationIntroduction to Java Applications; Input/Output and Operators
www.thestudycampus.com Introduction to Java Applications; Input/Output and Operators 2.1 Introduction 2.2 Your First Program in Java: Printing a Line of Text 2.3 Modifying Your First Java Program 2.4 Displaying
More informationChapter 1. Introduction to Programming and Visual Basic Pearson Addison-Wesley. All rights reserved. Addison Wesley is an imprint of
Chapter 1 Introduction to Programming and Visual Basic Addison Wesley is an imprint of 2011 Pearson Addison-Wesley. All rights reserved. Section 1.1 COMPUTER SYSTEMS: HARDWARE AND SOFTWARE Computer systems
More informationCS/IT 114 Introduction to Java, Part 1 FALL 2016 CLASS 3: SEP. 13TH INSTRUCTOR: JIAYIN WANG
CS/IT 114 Introduction to Java, Part 1 FALL 2016 CLASS 3: SEP. 13TH INSTRUCTOR: JIAYIN WANG 1 Notice Reading Assignment Chapter 1: Introduction to Java Programming Homework 1 It is due this coming Sunday
More informationLab # 2. For today s lab:
1 ITI 1120 Lab # 2 Contributors: G. Arbez, M. Eid, D. Inkpen, A. Williams, D. Amyot 1 For today s lab: Go the course webpage Follow the links to the lab notes for Lab 2. Save all the java programs you
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 informationSt. Edmund Preparatory High School Brooklyn, NY
AP Computer Science Mr. A. Pinnavaia Summer Assignment St. Edmund Preparatory High School Name: I know it has been about 7 months since you last thought about programming. It s ok. I wouldn t want to think
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 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 informationMr. Monroe s Guide to Mastering Java Syntax
Mr. Monroe s Guide to Mastering Java Syntax Getting Started with Java 1. Download and install the official JDK (Java Development Kit). 2. Download an IDE (Integrated Development Environment), like BlueJ.
More informationChapter 2 Part 2 Edited by JJ Shepherd, James O Reilly
Basic Computation Chapter 2 Part 2 Edited by JJ Shepherd, James O Reilly Parentheses and Precedence Parentheses can communicate the order in which arithmetic operations are performed examples: (cost +
More informationCOMP 202. Java in one week
COMP 202 CONTENTS: Basics of Programming Variables and Assignment Data Types: int, float, (string) Example: Implementing a calculator Java in one week The Java Programming Language A programming language
More informationChapter 2. Designing a Program. Input, Processing, and Output Fall 2016, CSUS. Chapter 2.1
Chapter 2 Input, Processing, and Output Fall 2016, CSUS Designing a Program Chapter 2.1 1 Algorithms They are the logic on how to do something how to compute the value of Pi how to delete a file how to
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 informationCIS 3260 Intro. to Programming with C#
Running Your First Program in Visual C# 2008 McGraw-Hill 2010 The McGraw-Hill Companies, Inc. All rights reserved. Run Visual Studio Start a New Project Select File/New/Project Visual C# and Windows must
More information12/22/11. Java How to Program, 9/e. public must be stored in a file that has the same name as the class and ends with the.java file-name extension.
Java How to Program, 9/e Education, Inc. All Rights Reserved. } Covered in this chapter Classes Objects Methods Parameters double primitive type } Create a new class (GradeBook) } Use it to create an object.
More informationDarrell Bethea May 25, 2011
Darrell Bethea May 25, 2011 Yesterdays slides updated Midterm on tomorrow in SN014 Closed books, no notes, no computer Program 3 due Tuesday 2 3 A whirlwind tour of almost everything we have covered so
More informationDepartment of Computer Science Purdue University, West Lafayette
Department of Computer Science Purdue University, West Lafayette Fall 2011: CS 180 Problem Solving and OO Programming Exam 1 Solutions Q 1 Answer the questions below assuming that binary integers are represented
More informationMethods CSC 121 Fall 2016 Howard Rosenthal
Methods CSC 121 Fall 2016 Howard Rosenthal Lesson Goals Understand what a method is in Java Understand Java s Math Class and how to use it Learn the syntax of method construction Learn both void methods
More informationIntroduction to Programming Using Java (98-388)
Introduction to Programming Using Java (98-388) Understand Java fundamentals Describe the use of main in a Java application Signature of main, why it is static; how to consume an instance of your own class;
More informationProject 1. Java Control Structures 1/17/2014. Project 1 and Java Intro. Project 1 (2) To familiarize with
Project 1 and Java Intro Sharma Chakravarthy Information Technology Laboratory (IT Lab) Computer Science and Engineering Department The University of Texas at Arlington, Arlington, TX 76019 Email: sharma@cse.uta.edu
More informationAssoc. Prof. Dr. Marenglen Biba. (C) 2010 Pearson Education, Inc. All rights reserved.
Assoc. Prof. Dr. Marenglen Biba Laboratory Session: Exercises on classes Analogy to help you understand classes and their contents. Suppose you want to drive a car and make it go faster by pressing down
More informationA+ Computer Science -
Visit us at www.apluscompsci.com Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content! www.facebook.com/apluscomputerscience import java.util.scanner; Try
More informationSelec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Spring 2016 Howard Rosenthal
Selec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Spring 2016 Howard Rosenthal Lesson Goals Understand Control Structures Understand how to control the flow of a program
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 informationChapter 2 ELEMENTARY PROGRAMMING
Chapter 2 ELEMENTARY PROGRAMMING Lecture notes for computer programming 1 Faculty of Engineering and Information Technology Prepared by: Iyad Albayouk ١ Objectives To write Java programs to perform simple
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 informationSelec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Fall 2016 Howard Rosenthal
Selec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Fall 2016 Howard Rosenthal Lesson Goals Understand Control Structures Understand how to control the flow of a program
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 informationAngela Z: A Language that facilitate the Matrix wise operations Language Reference Manual
Angela Z: A Language that facilitate the Matrix wise operations Language Reference Manual Contents Fei Liu, Mengdi Zhang, Taikun Liu, Jiayi Yan 1. Language definition 3 1.1. Usage 3 1.2. What special feature
More informationICOM 4015: Advanced Programming
ICOM 4015: Advanced Programming Lecture 1 Reading: Chapter One: Introduction Chapter 1 Introduction Chapter Goals To understand the activity of programming To learn about the architecture of computers
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 informationAP Computer Science A Summer Assignment
Mr. George AP Computer Science A Summer Assignment Welcome to AP Computer Science A! I am looking forward to our class. Please complete the assignment below. It is due on the first day back to school in
More informationText User Interfaces. Keyboard IO plus
Text User Interfaces Keyboard IO plus User Interface and Model Model: objects that solve problem at hand. User interface: interacts with user getting input from user giving output to user reporting on
More informationDefining Classes and Methods
Defining Classes and Methods Chapter 4 Chapter 4 1 Basic Terminology Objects can represent almost anything. A class defines a kind of object. It specifies the kinds of data an object of the class can have.
More informationFlow of Control. Chapter 3 Part 3 The Switch Statement
Flow of Control Chapter 3 Part 3 The Switch Statement Agenda Hw 03 comments Review of Ch03 - Parts 1 & 2 Conditional operator I/O of boolean values The switch statement Random numbers Methods with arguments
More informationTask #1 The if Statement, Comparing Strings, and Flags
Chapter 3 Lab Selection Control Structures Lab Objectives Be able to construct boolean expressions to evaluate a given condition Be able to compare Strings Be able to use a flag Be able to construct if
More informationProgramming Exercise 7: Static Methods
Programming Exercise 7: Static Methods Due date for section 001: Monday, February 29 by 10 am Due date for section 002: Wednesday, March 2 by 10 am Purpose: Introduction to writing methods and code re-use.
More informationFundamentals of Programming. Lecture 3: Introduction to C Programming
Fundamentals of Programming Lecture 3: Introduction to C Programming Instructor: Fatemeh Zamani f_zamani@ce.sharif.edu Sharif University of Technology Computer Engineering Department Outline A Simple C
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 informationAP Computer Science Unit 1. Programs
AP Computer Science Unit 1. Programs Open DrJava. Under the File menu click on New Java Class and the window to the right should appear. Fill in the information as shown and click OK. This code is generated
More informationConsole Input and Output
Solutions Manual for Absolute C++ 4th Edition by Walter Savitch Link full download Test bank: https://getbooksolutions.com/download/test-bank-for-absolute-c-4th-edition-by-savitch/ Link full download Solutions
More information5/3/2006. Today! HelloWorld in BlueJ. HelloWorld in BlueJ, Cont. HelloWorld in BlueJ, Cont. HelloWorld in BlueJ, Cont. HelloWorld in BlueJ, Cont.
Today! Build HelloWorld yourself in BlueJ and Eclipse. Look at all the Java keywords. Primitive Types. HelloWorld in BlueJ 1. Find BlueJ in the start menu, but start the Select VM program instead (you
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 informationMethods CSC 121 Spring 2017 Howard Rosenthal
Methods CSC 121 Spring 2017 Howard Rosenthal Lesson Goals Understand what a method is in Java Understand Java s Math Class and how to use it Learn the syntax of method construction Learn both void methods
More informationChapter 4: Conditionals and Recursion
Chapter 4: Conditionals and Recursion Think Java: How to Think Like a Computer Scientist 5.1.2 by Allen B. Downey Agenda The modulus operator Random Number Generation Conditional Execution Alternative
More informationComputer Hardware. Java Software Solutions Lewis & Loftus. Key Hardware Components 12/17/2013
Java Software Solutions Lewis & Loftus Chapter 1 Notes Computer Hardware Key Hardware Components CPU central processing unit Input / Output devices Main memory (RAM) Secondary storage devices: Hard drive
More informationIT 374 C# and Applications/ IT695 C# Data Structures
IT 374 C# and Applications/ IT695 C# Data Structures Module 2.1: Introduction to C# App Programming Xianrong (Shawn) Zheng Spring 2017 1 Outline Introduction Creating a Simple App String Interpolation
More informationSimple Java Programs. OOC 4 th Sem, B Div Prof. Mouna M. Naravani
Simple Java Programs OOC 4 th Sem, B Div 2016-17 Prof. Mouna M. Naravani /* */ A First Simple Program This is a simple Java program. Call this file "Example.java". class Example { } // Your program begins
More informationChapter 2 Elementary Programming. Liang, Introduction to Java Programming, Tenth Edition, (c) 2015 Pearson Education, Inc. All rights reserved.
Chapter 2 Elementary Programming 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 problems
More informationFRAC: Language Reference Manual
FRAC: Language Reference Manual Justin Chiang jc4127 Kunal Kamath kak2211 Calvin Li ctl2124 Anne Zhang az2350 1. Introduction FRAC is a domain-specific programming language that enables the programmer
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 informationFundamentals of Programming Data Types & Methods
Fundamentals of Programming Data Types & Methods By Budditha Hettige Overview Summary (Previous Lesson) Java Data types Default values Variables Input data from keyboard Display results Methods Operators
More informationMath Modeling in Java: An S-I Compartment Model
1 Math Modeling in Java: An S-I Compartment Model Basic Concepts What is a compartment model? A compartment model is one in which a population is modeled by treating its members as if they are separated
More informationJava+- Language Reference Manual
Fall 2016 COMS4115 Programming Languages & Translators Java+- Language Reference Manual Authors Ashley Daguanno (ad3079) - Manager Anna Wen (aw2802) - Tester Tin Nilar Hlaing (th2520) - Systems Architect
More informationChapter III. Java Simple Data Types. Chapter III Topics
Chapter III Java Simple Data Types Chapter III Topics 3.1 Introduction 3.2 Declaring Variables 3.3 The int Data Type 3.4 The double Data Type 3.5 Arithmetic Shortcut Notations 3.6 The char & String Data
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 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 information