Java By Example PHẦN 7 ppt

... by leaving such details up to Java or maybe you'll want to have more control over the devices than the default behavior allows. You can capture most messages received by a Java applet by ... MouseApplet applet responds to mouse clicks. Listing 25.1 MouseApplet .java: Using Mouse Clicks in an Applet. import java. awt.*; import java. applet.*; public class MouseApplet extends...

Ngày tải lên: 12/08/2014, 19:21

... value). http://www.ngohaianh.info Chapter 7 Math Operators CONTENTS The Addition Operator Example: Using the Addition Operator❍ Example: Multiple Additions❍ ● The Subtraction Operator Example: Using the Subtraction Operator❍ Example: ... Appletviewer running the FontApplet2 applet. Listing 17. 5 FontApplet2 .java: Displaying Different Sized Fonts. import java. awt.*; import java. ap...

Ngày tải lên: 22/07/2014, 16:21

... the original Java- compatible Web browser. java This is the Java interpreter, which runs applets and applications by reading and interpreting byte-code .CLASS files. javac This is the Java compiler, ... Debugger from Appletviewer❍ ● Using HotJava● Using Java& apos;s Documentation Creator Javadoc Tags❍ Example: Using Doc Tags❍ Example: Documenting an Applet❍ Javadoc Options❍ ●...

Ngày tải lên: 22/07/2014, 16:21

... g.drawImage(snake, 57, 57, width, height, this); } } Tell Java that the applet uses the classes in the awt package. Tell Java that the applet uses the classes in the applet package. Tell Java that the ... URL(str); http://www.ngohaianh.info Listing 27. 1 ImageApplet .java: An Applet That Displays an Image. import java. awt.*; import java. applet.*; import java. net.*; public class I...

Ngày tải lên: 22/07/2014, 16:21

... Listing 13.2 shows how this is done. Listing 13.2 Applet 17 .java: Using Arrays. import java. awt.*; import java. applet.*; public class Applet 17 extends Applet { TextField textField[]; int avg[]; http://www.ngohaianh.info Write ... for Loop● Example: Using a for Loop● Example: Using a for Loop in a Program● Changing the Increment Value● Example: Looping with Different Increments●...

Ngày tải lên: 22/07/2014, 16:21

... TEXTAREAAPPLET .JAVA: The TextAreaApplet Applet. import java. awt.*; import java. applet.*; public class TextAreaApplet extends Applet { Finally, you add the list to the applet. Listing 20.4 shows the Java ... mode. Example: Using a Scrolling List in an Applet By now, you've gotten used to working with the list of musical artists that I've used in the previous few examples....

Ngày tải lên: 12/08/2014, 19:21

... across the top. Figures 27. 6, 27. 7, and 27. 8 show the ImageApplet3 applet displaying the image in its three sizes. (You can find the solution for this exercise in the CHAP 27 folder of this book's ... book's CD-ROM.) Figure 27. 5 : Here's the image at 50%. Figure 27. 6 : Here's the image at 100%. Figure 27. 7 : And here's the image at 200%. Tell Java that t...

Ngày tải lên: 12/08/2014, 19:21

... index. command. byte In Java, the byte data type, which is eight bits long, can hold a range of values from -1 27 to 128. byte-code The format of compiled Java programs. Byte-code files are ... is where a Java application's execution begins. 2. To run a Java application, you compile it using javac, and then run the byte-code .CLASS file with the Java interpreter, java....

Ngày tải lên: 12/08/2014, 19:21

... are a few problems. Let us test if the string "1 * 2 + 3" is accepted by the grammar. We can test that by doing a derivation, where we start with the start symbol (Formula) and apply ... taken care of by UpdateReferences in the syntax tree. It returns true if all goes well and false if any reference is placed outside the spreadsheet. The source set is also updated by a c...

Ngày tải lên: 12/08/2014, 21:20

... source is a string. Example: Reading a File There are many ways to read files using Java& apos;s I/O classes. The most basic, however, is to read a file byte -by- byte. Suppose, for example, you wanted ... String str = " ;Java Version: " + System.getProperty(" ;java. version"); System.out.println(str); str = " ;Java Class Path: " + System.getProperty("...

Ngày tải lên: 22/07/2014, 16:21