introduction to computer science using python

... Chapter Classes and Methods III: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... variables of the class type • To create instances of the class using constructors • To send messages to instances of the class by invoking class instance methods • To know the class public interface ... sent to objects • Objects respond to messages that are in their protocols or interfaces     Objects • Encapsulate data values within a single entity • Their behavior is often general enough to

Ngày tải lên: 11/01/2020, 18:40

... Chapter Iteration Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... do-while statements • demonstrate the use of loop invariants to verify the correctness of loops • show the use of loops in data entry and computer animation     while Loop • Repeated executes body

Ngày tải lên: 11/01/2020, 18:43

... Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter Preview In this chapter we will: • show how to organize ... provided to programmers along with the Java compiler (e.g Math or MouseEvent) – Java expects to find these classes in separate directories or folders • The classes stored in each directory form ... Names • Using a fully qualified component name x = java.lang.Math.sqrt(3); • Using an import statement // to allow unqualified references to // all package classes import package.name.*; // to allow

Ngày tải lên: 11/01/2020, 18:45

... Chapter 14 Recursion Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, , E Reingold Chapter ... technique is to divide a problem into smaller subproblems • These subproblems may also be divided into smaller subproblems • When the subproblems are small enough to solve directly the process stops ... chapter we will: • introduce recursion as a programming technique • show how recursion can be used to simplify the design of complex algorithms • present several well known recursive algorithms (e.g

Ngày tải lên: 11/01/2020, 18:46

... Chapter 11 Java AWT Part I: Mouse Events (Optional) Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... show how a program can respond to mouse events (e.g clicks and mouse movements) • demonstrate how to implement a listener interface • show how mouse events can be used to build highly interactive ... the event • Listener classes send messages to an event manager requesting to be notified when a particular message occurs • Event managers send messages to listeners notifying them when a particular

Ngày tải lên: 11/01/2020, 18:47

... Chapter Classes and Methods II Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... variables to facilitate method communication • demonstrate the use of classes to improve program structure     Building Classes with Multiple Methods • Computer programs can be thought of using phases ... initialized to default values if no initializers are found – integers and doubles are initialized to – characters are initialized to the null character (ASCII code 0) – booleans are initialized to false

Ngày tải lên: 11/01/2020, 19:00

... to set size to accommodate preferred sizes of components)     Frame Example public class TwoButtons { Frame f; Button redButton, blueButton; }   public TwoButttons() { f = new Frame(“Two Buttons ... will need to use super( )to set the frame title         Frame Inheritance Example public class TwoButtons extends Frame { Button redButton, blueButton; public TwoButttons() { super(“Two Buttons Frame”); ... redButton = new Button(“Red”); blueButton = new Button(“Blue”); f.setLayout(new Flowlayout()); f.add(redButton); f.add(blueButton); f.pack(); f.setVisible(true); } }     Processing Radio Buttons

Ngày tải lên: 11/01/2020, 19:02

... Chapter One-Dimensional Arrays Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... error – trying to access variable outside counts Expressions as Subscripts • Array subscripts not have to be constants • Array subscripts need to be integer expressions that evaluate to valid subscript ... 10 students using Student[ ] students; students = new Student[10];     Passing Arrays as Arguments • When an array is passed as an argument to a method, what is passed is a pointer to the array,

Ngày tải lên: 11/01/2020, 19:27

... Chapter What is Programming? Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... into machine language or Java Bytecode using an compiler (e.g javac) • Use an interpreter to execute the compiled program (e.g java) • Return to the editor to correct any errors (or bugs) and start ... is pervasive – easy to create multiple objects of the same type – easy to create similar objects without having to rewrite the overlapping code • OOP makes programs easier to understand and more

Ngày tải lên: 11/01/2020, 19:29

... It is legal to assign a char to an int variable int i = ‘a’; // assigns 97 to i • It is legal to assign an int to an char variable char c = 97; // assigns ‘a’ to c • It is possible to perform ... Chapter Fundamental Data Types of Java Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... type int is not infinitely large and it is possible to compute a value incorrectly because the value is too large to be stored in an int variable storage location • Unlike the real numbers in mathematics

Ngày tải lên: 11/01/2020, 20:03

... Chapter Nested Loops and Two-Dimensional Arrays Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... of two-dimensional arrays to represent grids of information • show how computer graphics are generated using pixels     Nested for Loops • Nested loops frequently used to process twodimensional

Ngày tải lên: 11/01/2020, 20:21

... Chapter 15 Text Processing and File Input/Output Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Chapter Preview ... objects Java provides constructors for each class • The StringBuffer class also contains a ToString method to allow easier output Sequential Files • Files are stored are stored on disks • In this ... the end of line • PrintWriter is a wrapper class provided to convert several data type values to printable forms Writing to a File • To make a file available for printing PrintWriter pr = new

Ngày tải lên: 11/01/2020, 20:25

... 10 Classes and Methods IV: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Chapter Preview ... it as a message to an object • The class method f in the class C is invoked using the notation f.C( … ) • It has no receiver and cannot refer to instance variables • It can refer to and manipulate ... variable, not one instance per object • Created by adding the modifier static to the variables declaration • Allows variables to be modified once for all class objects • Can be accessed by class methods

Ngày tải lên: 11/01/2020, 20:29

... Chapter Decision Making Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... 18) out.println(“You are eligible to vote.”);         Relational Operators < < less than > > greater than = greater than or equal to = == equal to != not equal to     if Statement with Optional ... making in computer programming • describe the use of the Java if and switch statements • describe the use of Boolean expressions in Java if statements • discuss the use of integer selector variables

Ngày tải lên: 11/01/2020, 20:31

... Chapter Classes and Methods III: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... variables of the class type • To create instances of the class using constructors • To send messages to instances of the class by invoking class instance methods • To know the class public interface ... sent to objects • Objects respond to messages that are in their protocols or interfaces     Objects • Encapsulate data values within a single entity • Their behavior is often general enough to

Ngày tải lên: 15/05/2020, 22:27

... Chapter Nested Loops and Two-Dimensional Arrays Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter ... of two-dimensional arrays to represent grids of information • show how computer graphics are generated using pixels     Nested for Loops • Nested loops frequently used to process twodimensional

Ngày tải lên: 15/05/2020, 22:29

... Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold     Chapter Preview In this chapter we will: • show how to organize ... provided to programmers along with the Java compiler (e.g Math or MouseEvent) – Java expects to find these classes in separate directories or folders • The classes stored in each directory form ... Names • Using a fully qualified component name x = java.lang.Math.sqrt(3); • Using an import statement // to allow unqualified references to // all package classes import package.name.*; // to allow

Ngày tải lên: 15/05/2020, 22:33

... 10 Classes and Methods IV: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Chapter Preview ... it as a message to an object • The class method f in the class C is invoked using the notation f.C( … ) • It has no receiver and cannot refer to instance variables • It can refer to and manipulate ... variable, not one instance per object • Created by adding the modifier static to the variables declaration • Allows variables to be modified once for all class objects • Can be accessed by class methods

Ngày tải lên: 15/05/2020, 22:34

... figure below, use to dimension the sketch. Pick to modify the dimensions. Pick it as reference. Pick it as reference. Pick it as reference. 1 ME-430 Introduction to Computer Aided Design ... Click . 18 Click Apply button to change the color of part. Click Close button. Click to save the part. 3 Type in ARM_BRACK for the name ... placement surface. 16 Click to add a new color. To open Color Editor, pick . Pick . 13 ADDING THE ROUNDS Click the Round Tool icon . Enter 5 for the radius...

Ngày tải lên: 27/10/2013, 17:15