wu thomas an introduction to objectoriented programming with java 5th edition

... Trang 1   Chapter 7 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, ... can be derived using a mechanism known as Trang 5   Trang 6   Client Rights • To declare variables of the class type • To create instances of the class using constructors • To send messages to ... object to remain visible to clients – classes can be linked when a client passes an object as a message argument to another object Trang 33   Object Containing Reference to Another Object Trang

Ngày tải lên: 11/01/2020, 18:40

... Trang 18   Trang 19   Drawing in Java // code to read and display GIF image from file import java.awt.*; Import CSLib.*; … DrawingBox g = new DrawingBox(); … Toolkit tools = Toolkit.getDefaultToolkit(): ... Trang 1   Chapter 6 Iteration Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang 2   Chapter Preview ... the use of repetition (iteration) in programming algorithms • describe the Java while, for, and do-while statements • demonstrate the use of loop invariants to verify the correctness of loops •

Ngày tải lên: 11/01/2020, 18:43

... Trang 1   Chapter 12 Inheritance and Exceptions Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang 2   Chapter ... extends B { Trang 11   Trang 12   Inheritance and Messages • When C is a subclass of B – C objects can respond to all messages that B objects can respond to – In general C objects can be used whenever ... 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

Ngày tải lên: 11/01/2020, 18:45

... Trang 1Chapter 14Recursion Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by Trang 2Chapter PreviewIn this chapter ... or more easier to solve subproblems Trang 5Counting Digits in JavaTrang 6• Use f(y) to compute f(x)• For this to work, there has to be at least one value of x for which f(x) can be computed ... divide and conquer principle • Recursive divide and conquer algorithms are Trang 9Evaluating Exponents Using Divide and Conquer static int power(int k, int n) { // raise k to the power n Trang

Ngày tải lên: 11/01/2020, 18:46

... Trang 1Chapter 11 Java AWT Part |: Mouse Events (Optional) Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang ... driven programming 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 ... interactive programs Trang 3Abstract Windowing Toolkit (AWT) ¢ Part of the Java distribution, but not part of the Java language itself ¢ AWT Is library of classes and methods used by Java programmers

Ngày tải lên: 11/01/2020, 18:47

... Trang 1   Chapter 5 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 Trang 2   Chapter ... statements with comments Trang 5   Instance Variables • Local variables – variables declared inside methods – not accessible to any other method – cannot be used for communication Trang 6   Initialization ... the same name Trang 10   Scope Example Trang 11   Bad Variable Declarations Trang 12   Class Constructors with Arguments • A constructor is a special method that is called when an object is allocated.

Ngày tải lên: 11/01/2020, 19:00

... Texttfields, Buttons, and Labels) show how Java programs can be made to react to user actions on Java graphical components show how Java applications can be run from inside web browsers Trang 3Frames ... need to use super ( )to set the frame title Trang 10Frame Inheritance Example public class TwoButtons extends Frame { Button redButton, blueButton; public TwoButttons() { super(“Two Buttons ... Component or Container Trang 8Using Inheritance ¢ It is possible to use inheritance to allow TwoButtons to become a frame tn Its own right ¢ Note that the UML diagram will show TwoButtons as a subclass

Ngày tải lên: 11/01/2020, 19:02

... Trang 1   Chapter 2 Classes and Methods I Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) byS.N Kamin, D Mickunas, E Reingold Trang 2   Chapter ... Trang 11   Trang 13• void return type– Means it does not return a value to the caller (client) Trang 14– Display text representation of argument and advance output cursor to the next line Trang ... Trang 3   Trang 4   Trang 5   Running Java Programs • Enter the program source code in a data file called Hitwall.java using an editor • Compile the source program by typing javac Hitwall.java •

Ngày tải lên: 11/01/2020, 19:06

... Trang 5• Each box is an int variable• The numbers on top are each variable’s subscript or index • An array of size 10 has subscripts 0 to 9 Trang 6   Array Subscripts • Arrays can contain any ... • introduce algorithms for searching and sorting arrays • show how multiple images can be painted from an array to use in programming simple animations Trang 4counts = new int[10];scores = new ... Trang 18   Trang 19Student[ ] students;students = new Student[10]; Trang 20   Passing Arrays as Arguments • When an array is passed as an argument to a method, what is passed is a pointer to

Ngày tải lên: 11/01/2020, 19:27

... Trang 1Chapter 1 What is Programming? Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang 2Chapter ... class A class implements an interface and specifies the behavior of an object Trang 8Object-Oriented Programming and Java ¢ The use of OOP in Java Is pervasive — easy to create multiple objects ... entering and running Java programs Trang 3— a sequence of language independent steps which may be followed to solve a problem Trang 4Final Maze Solving Program Trang 5Object-Oriented Programming

Ngày tải lên: 11/01/2020, 19:29

... Trang 1   Chapter 3 Fundamental Data Types of Java Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) byS.N Kamin, D Mickunas, E Reingold Trang 2  ... or within parenthes e s a Evaluate *, /, or % before + or – b Evaluate sequences of *, /, and % operators from left to right c Evaluate sequences of + and – operators from left to right Trang ... the 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

Ngày tải lên: 11/01/2020, 20:03

... Trang 1   Chapter 9 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 Trang ... new double[ROWS][COLS] Trang 9   Trang 10   Computing Row Totals double [] yearTotals = new double[ROWS]; for (y = 0; y < ROWS; y++) { // compute total for year y yearTotals[y] = 0.0; for ... double[COLS]; Trang 15   Computer Graphics • Computer graphics is the study of methods of representing and manipulating images • A two-dimensional array can be used to represent the image to be displayed

Ngày tải lên: 11/01/2020, 20:21

... Trang 1Chapter 15Text 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 Trang 2Chapter ... describe the java.io package • introduce the Java StringBuffer class • show how files can be read and written • discuss how to handle file input and output exceptions • demonstrate how to perform ... input and output Trang 3• Java provides a number of methods for operating on String objects • String objects are immutable • Immutable objects cannot be changed once they are created Trang 4• Java

Ngày tải lên: 11/01/2020, 20:25

... Trang 1Chapter 10Classes and Methods IV: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, ... 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 ... variables to be modified once for all class objects • Can be accessed by class methods Trang 5Class Methods• Methods declared with static modifier • Can be defined in any class • Not associated with an

Ngày tải lên: 11/01/2020, 20:29

... selector variables in Java switch statements Trang 4   Trang 5   Relational Operators < < less than > > greater than <= less than or equal to >= greater than or equal to = ... Trang 1   Chapter 4 Decision Making Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang 2   Chapter ... equal to != not equal to Trang 6   if Statement with Optional else • An if statement may have an optional else clause that will only be executed when the condition is false Trang 7   Trang 8

Ngày tải lên: 11/01/2020, 20:31

... Trang 1   Chapter 7 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, ... can be derived using a mechanism known as Trang 5   Trang 6   Client Rights • To declare variables of the class type • To create instances of the class using constructors • To send messages to ... object to remain visible to clients – classes can be linked when a client passes an object as a message argument to another object Trang 33   Object Containing Reference to Another Object Trang

Ngày tải lên: 15/05/2020, 22:27

... Trang 1   Chapter 9 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 Trang ... new double[ROWS][COLS] Trang 9   Trang 10   Computing Row Totals double [] yearTotals = new double[ROWS]; for (y = 0; y < ROWS; y++) { // compute total for year y yearTotals[y] = 0.0; for ... double[COLS]; Trang 15   Computer Graphics • Computer graphics is the study of methods of representing and manipulating images • A two-dimensional array can be used to represent the image to be displayed

Ngày tải lên: 15/05/2020, 22:29

... Trang 1   Chapter 12 Inheritance and Exceptions Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E Reingold Trang 2   Chapter ... extends B { Trang 11   Trang 12   Inheritance and Messages • When C is a subclass of B – C objects can respond to all messages that B objects can respond to – In general C objects can be used whenever ... 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

Ngày tải lên: 15/05/2020, 22:33

... Trang 1Chapter 10Classes and Methods IV: Static Methods and Variables Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, ... 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 ... variables to be modified once for all class objects • Can be accessed by class methods Trang 5Class Methods• Methods declared with static modifier • Can be defined in any class • Not associated with an

Ngày tải lên: 15/05/2020, 22:34

... objects can and cannot do. An object is called an instance of a class. An object is an instance of exactly one class. An instance of a class belongs to the class. The two Bicycle objects Moto-1 and ... which stands for modulator-demodulator, is a device that con- verts analog signals to digital and digital signals to analog. By using a modem, a computer can send to and receive data from another ... describe how Java is related to the Internet and Web browsers in Section 0.4. 4 Chapter 0 Introduction to Computers and Programming Languages network LAN WAN internet If you want to learn more...

Ngày tải lên: 08/03/2014, 02:20