introduction to computer science using java

... 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 ... algorithms • describe the Java while, for, and 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

Ngày tải lên: 11/01/2020, 18:43

... code java. util.Date d = new java. util.Date(); java. awt.Point p = new java. awt.Point(1,2); java. awt.Button b = new java. awt.Button();     • Can be abbreviated import java. util.date; Import java. awt.*; ... 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 ... Java program) java. net Classes for networking   java. util   Useful auxiliary classes like Date Package Component Names • Using a fully qualified component name x = java. lang.Math.sqrt(3); • Using

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 Preview ... 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, ... 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 that supported are by the basic Java ... labeled optional, it is not possible to be a complete Java programmer without understanding the AWT     Java Events • Events are occurrences outside of the program to which the program must respond

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 ... 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 ... Reads and stores the hour and minute data String toString() Returns string version of time suitable for printing void setHour(int h) Sets hour to h void setMinute(int m) Sets minute to m int getHour()

Ngày tải lên: 11/01/2020, 19:00

... Chapter 13 Java AWT – Part II (Optional) Lecture Slides to Accompany An Introduction to Computer Science Using Java (2nd Edition) by S.N Kamin, D Mickunas, E ... 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”);

Ngày tải lên: 11/01/2020, 19:02

... 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: • describe structure of Java programs ... code in a data file called Hitwall .java using an editor • Compile the source program by typing javac Hitwall .java • Execute the compiled program by typing java Hitwall     Program Elements – ... of a Java application – executed first when application is run • functions – also known as methods – define operations that may be applied to a Java data object (class instance) • body – Java

Ngày tải lên: 11/01/2020, 19:06

... 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 ... double[] scores; String[] studentNames;     Array Allocation • Arrays are allocated using the Java new operator • The syntax is: new type[size]; • Examples: counts = new int[10]; scores = new

Ngày tải lên: 11/01/2020, 19:27

... program 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) ... 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 ... Object-Oriented Programming and Java • The use of OOP in Java is pervasive – easy to create multiple objects of the same type – easy to create similar objects without having to rewrite the overlapping

Ngày tải lên: 11/01/2020, 19:29

... 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   ... 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 ... to test double expressions for equality and obtain a correct result due to rounding errors in representations     Mixing Numeric Data Types • Java will automatically convert int expressions to

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

... 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: • describe the java. io package ... found in String • To convert between String objects and StringBuffer objects Java provides constructors for each class • The StringBuffer class also contains a ToString method to allow easier output ... Programmers often need to read or write files stored on disks File Input • Java classes that support file input are found in the java. io package • FileReader allows us to open a file for reading

Ngày tải lên: 11/01/2020, 20:25

... 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

... 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

... 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

... My fears are confirmed. I yell at Richard to bid his friend stop. For some reason, he has to go upstairs to turn off the machine (although it appears to be fully portable and self-contained) ... opportunity to reconsider his or her own dream theory and, into the bargain, to learn about the fascinating discoveries of modern sleep science. xii Why did the analysis of dream content fail to become ... chosen to highlight two important points about the doctrine of brain—mind isomorphism. One is that it is just as fruitful to map from the brain to the mind as it is to map from the mind to the...

Ngày tải lên: 24/01/2014, 08:20

... can only touch on, and we have had to be content to quote results in various places as signposts to further study. Nevertheless, our aim has been to provide as much insight as possible into contemporary ... can be used, together with Hubble’s law, to obtain the distance to a galaxy, provided that the galaxy is far enough away for the contribution of random velocities to the redshift to be unimportant. ... because this is too much to be attributed to nucleosynthesis in stars. The steady-state theory is of historical interest, because it is a properly worked out example of an alternative to the big- bang...

Ngày tải lên: 17/03/2014, 13:34

... momentum to knock a proton out of its place in the atom. Even an electron (with its small mass) was too light to do so. Any radiation capable of knocking a proton out of an atom had to consist ... related to the atomic weight. 20 HIGHLIGHTS TO PLASMA a one centimeter length, one could arrange about one hundred million atoms in a row. It would be too tedious and lengthy to go into all the ... the atomic number is just the numb er of protons. Today’s accepted structure of the atom is that the atom is like a small cotton ball composed of protons and neutrons and spinning around this...

Ngày tải lên: 17/03/2014, 14:59