LESSON 03 using classes and objects Lập trình Java

... Using Classes and Objects • We can create more interesting programs using predefined classes and related objects • Chapter focuses on: – – – – – – – – – object creation and object ... String class and its methods the Java API class library the Random and Math classes formatting output enumerated types wrapper classes graphical components and containers labels an...

Ngày tải lên: 30/05/2016, 00:15

... Loops and Conditionals Dialog Boxes Drawing Techniques • Conditionals and loops enhance our ability to generate interesting graphics • See Bullseye .java • See BullseyePanel .java • See Boxes .java ... drawing with the aid of conditionals and loops – dialog boxes Outline The switch Statement The Conditional Operator The Statement The for Statement Drawing with Loops an...

Ngày tải lên: 30/05/2016, 00:16

... Using Classes and Objects • We can create more interesting programs using predefined classes and related objects • Chapter focuses on:          object creation and object ... reserved 3- 37 Summary • Chapter focused on:        object creation and object references the String class and its methods the Java standard class library the Random and Math...

Ngày tải lên: 15/03/2014, 11:20

... is a set of classes that supports the development of programs  Java standard class library • Some classes in Java standard class library: System, String Slide 11 Packages • The classes can be ... methods that generate pseudorandom numbers • The Random class belongs to java.util package • Some methods of the Random class:  Random() • Constructor: creates a new pseudorandom number gener...

Ngày tải lên: 29/03/2014, 02:21

... Data and Expressions • Let's explore some other fundamental programming concepts • Chapter focuses on: – – – – – – – – character strings primitive data the declaration and use of variables expressions ... Strings Variables and Assignment Primitive Data Types Expressions Data Conversion Interactive Programs Graphics Applets Drawing Shapes Copyright © 2012 Pearson Education,...

Ngày tải lên: 30/05/2016, 00:15

... Logical NOT && Logical AND || Logical OR • They all take boolean operands and produce boolean results • Logical NOT is a unary operator (it operates on one operand) • Logical AND and logical OR are ... Logical AND and Logical OR • The logical AND expression a && b is true if both a and b are true, and false otherwise • The logical OR expression a || b is true if a or b or both...

Ngày tải lên: 30/05/2016, 00:16

... Writing Classes • We've been using predefined classes from the Java API Now we will learn to write our own classes • Chapter focuses on: – – – – – – ... Education, Inc Writing Classes • The programs we’ve written in previous examples have used classes defined in the Java standard class library • Now we will begin to design programs that rely on classes ... defining classe...

Ngày tải lên: 30/05/2016, 00:16

... tester.runTest(); firstPress: Creating JavaFX Classes and Objects 87 Understanding the Structure of a JavaFX Class Looking at the top of the preceding listing, you’ll see some familiar JavaFX concepts from ... class that we walked firstPress: Creating JavaFX Classes and Objects 107 through a bit ago Here is an outline of the structure that I’ve been using for JavaFX...

Ngày tải lên: 05/10/2013, 12:20

... between the two objects except for the fact that they are both objects of the same type For example, if you have two Vehicle objects, each has its own copy of passengers, fuelcap, and mpg, and the contents ... existence and is a specific instance of a class That is, an object occupies memory space, but a type definition does not CRITICAL SKILL 8.2: Defining a Class and Creating...

Ngày tải lên: 24/01/2014, 20:20

... between the two objects except for the fact that they are both objects of the same type For example, if you have two Vehicle objects, each has its own copy of passengers, fuelcap, and mpg, and the contents ... existence and is a specific instance of a class That is, an object occupies memory space, but a type definition does not CRITICAL SKILL 8.2: Defining a Class and Creating...

Ngày tải lên: 27/01/2014, 02:20

... existence and is a specific instance of a class That is, an object occupies memory space, but a type definition does not CRITICAL SKILL 8. 2: Defining a Class and Creating Objects To illustrate classes, ... between the two objects except for the fact that they are both objects of the same type For example, if you have two Vehicle objects, each has its own copy of passengers, fuel...

Ngày tải lên: 06/03/2014, 22:20

... Structure Pattern Structure patterns are concerned with how classes and objects are composed to form large structures Different categories Adapter Bridge ... application Adapter Pattern Adapters are used to enable objects with different interfaces to communicate with each other Adapter Pattern tells us how to wrap up existing classes inside a new target in...

Ngày tải lên: 19/03/2014, 22:32

... Outline  Classes  Working with objects  Attributes, methods, and access control  Constructors  Readings:  Java how to program, chapter 3, Đại học Công nghệ ĐHQG Hà Nội Classes and objects in ... the class itself and to its subclasses or other classes in the same “package”  Private  Only accessible within this class Đại học Công nghệ ĐHQG Hà Nội Classes and obj...

Ngày tải lên: 05/07/2014, 15:20

Ngày tải lên: 27/10/2014, 12:00

... Nội dung báo cáo A Grouping and Partitioning B Câu hỏi A Grouping and partitioning Xem lại ví dụ phần 2.10: lấy tất ngôn ngữ sủ dụng Thuỵ ... a and b Set r = new HashSet(a); r.addAll(b); return r; })); ->Chúng ta phải tạo thiết lập đơn cho ngôn ngữ tìm thấy Sau ta kết hợp ngôn ngữ có với ngôn ngữ tìm thấy A Grouping and partitioning ... englishAndOtherLocales.get(tru...

Ngày tải lên: 05/10/2015, 23:46