Object Oriented Programming using Java phần 3 ppt

... for the standard Java API was produced using javadoc. Javadoc documentation is prepared from special comments that are placed in the Java source code file. Recall that one type of Java comment begins ... documentation, you need to run the javadoc tool. You can use javadoc in a command line interface similarly to the way that the javac and java commands are used. Javadoc can also be a...

Ngày tải lên: 12/08/2014, 21:21

... the answer. 12 Object Oriented Programming using Java Notes for the Computer Science Module Object Oriented Programming COMP200 Adapted from Introduction to Programming Using Java Version 5.0, ... . . . . . . . 63 3.1.2 Object- oriented Analysis and Design . . . . . . . . . . . . . . . . . 64 3. 1 .3 Object Oriented design . . . . . . . . . . . . . . . . . . ....

Ngày tải lên: 12/08/2014, 21:21

... an object Wrapper Classes and Autoboxing Recall that there are two kinds of types in JAVA: primitive types and object types (Classes). In some object- oriented languages, everything is an object. ... java. awt, their full names are actually java. awt.Graphics, java. awt.Color and java. awt.Font. (I hope that by now you’ve gotten the hang of how this naming thing works in JAVA. )...

Ngày tải lên: 12/08/2014, 21:21

... subclass of Object , a variable of type Object can refer to any object whatsoever, of any type. Java has several standard data structures that are designed to hold Object s, but since every object ... like this can be done in most programming languages. The cen- tral new idea in object- oriented programming the idea that really distinguishes it from traditional programming...

Ngày tải lên: 12/08/2014, 21:21

... it. 5 .3. 1 Static Import The import directive makes it possible to refer to a class such as java. awt.Color using its simple name, Color. All you have to do is say import java. awt.Color or import java. awt.∗. ... . . . . . . . . . . . . . . . . . . . . . . . . . . 1 13 6 .3. 2 Reusing Your JPanels . . . . . . . . . . . . . . . . . . . . . . . . 115 6 .3. 3 Applets on Web Pages . . . ....

Ngày tải lên: 12/08/2014, 21:21

... RandomStringsPanel import java. awt.Color; import java. awt.Font; import java. awt.Graphics; import javax.swing.JPanel; 126 import java. awt.∗; import java. awt.event.∗; import javax.swing.∗; public class ... and that it goes together very well with object oriented programming. (We will return to events and listeners in much more detail in later sections.) 6 .3 Applets and HTML ALT...

Ngày tải lên: 12/08/2014, 21:21

... changes at all to that class: import java. awt.Component; import java. awt.event.MouseEvent; import java. awt.event.MouseListener; import javax.swing.JFrame; 133 even if the message is very long. An ... In the command: 1 53 public HighLowGUI() { / / The c o n s t r u c t o r . setBackground( new Color( 130 ,50,40) ); setLayout( new BorderLayout (3, 3) ); / / BorderLayout w i th 3 p i x...

Ngày tải lên: 12/08/2014, 21:21

... adding an object to a Set has no effect if that object was already in the set. • coll.contains (object) –returns a boolean value that is true if object is in the collection. Note that object is ... study investigate the object- oriented concepts of encapsulation, inheritance, and polymor- phism. The game is inspired by Timothy Budd’s version in his book AN INTRODUC- TION TO OBJECT...

Ngày tải lên: 12/08/2014, 21:21

... accu- rate to about 15 digits. The real number 1 /3, for example, is the repeating decimal 0 .33 333 333 333 3 , and there is no way to represent it exactly using a finite number of digits. Computations ... then the value of 3 ∗ N + 1 will not be mathematically correct because of integer overflow. The problem arises whenever 3 ∗ N + 1 > 21474 836 47, that is when N > 21474 836 46 /3...

Ngày tải lên: 12/08/2014, 21:21

... except io n } 10 .3 Programming With Files IN THIS SECTION, we look at several programming examples that work with files, using the techniques that were introduced previously. 10 .3. 1 Copying a File As ... new files and can write data to files. In Java, such input and output can be done using streams. Human-readable character data is read from a file using an object belonging to th...

Ngày tải lên: 12/08/2014, 21:21