Java By Example PHẦN 5 pdf
giáo trình Java By Example phần 5 ppt
... RECTAPPLET .JAVA: Drawing Rectangles.
import java. awt.*;
import java. applet.*;
public class RectApplet extends Applet
{
public void paint(Graphics g)
{
g.drawRect( 35, 15, 1 25, 200);
g.fillRoundRect (50 , ... each X,Y pair. By looking at the values defined in the arrays, you
can see that the first line gets drawn from 35, 50 to 150 ,80. Because all the lines in a polygon are
connec...
giáo trình Java By Example phần 2 pdf
... Figure 25. 1 shows MouseApplet running under Appletviewer.
Figure 25. 1 : The MouseApplet applet responds to mouse clicks.
Listing 25. 1 MouseApplet .java: Using Mouse Clicks in an Applet.
import java. awt.*;
import ... has the focus and will receive the key presses.
Listing 25. 3 KeyApplet .java: An Applet That Captures Key Presses.
import java. awt.*;
import java. applet.*;
public class...
Microsoft ASP Net 3.5 Step By Step (phần 5) pdf
...
browser, your users may be taken by surprise if they browse to your page with a new browser
that interprets HTML differently.
Chapter 5 Composite Controls 1 05
2. After Visual Studio creates ...
While this is certainly effective, this technique has a couple of downsides. For example, HTML
is defi ned by multiple standards. That is, browsers running both HTML version 3.2 and ver-...
giáo trình Java By Example phần 10 pps
... 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 ... following:
java. lang●
java. util●
java. io●
The second group is called the HotJava packages and includes the libraries needed to create applets and
to communicate over the Internet....
giáo trình Java By Example phần 9 ppt
... 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, ... fact, you can write the simplest Java applet in only a few lines of code, as shown
in Listing 15. 1.
Listing 15. 1 MyApplet .java: The Simplest Java Applet.
import java. applet.*...
giáo trình Java By Example phần 8 ppt
... g.drawRect (52 , 52 , width+10, height+10);
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 ... the MS-DOS prompt, type javac DisplayClass .java. Java& apos;s compiler then compiles
the DisplayClass .java file, creating the DisplayClass.class file in your DISPLAY folder.
5.
As you can...
giáo trình Java By Example phần 7 docx
... a value of 5. Then, thanks to
the x+ =5 statement, the loop variable is incremented by 5 each time through the loop. Therefore, x goes
from 5 to 10, from 10 to 15, and so on up to 50 , resulting ... g.drawString(s, 50 +x* 25, 50 +y* 15) ;
}
}
}
Tell Java that the program uses classes in the awt package.
Tell Java that the program uses classes in the applet package.
Derive the...
giáo trình Java By Example phần 6 pps
... change the second and third arguments. For
example, Figure 6.4 shows the text positioned at 25, 25.
Figure 6.4 : Here, Applet1 displays the text at position 25, 25.
Getting Input from the User
Again, ... APPLET 15. htmL: Applet 15& apos;s HTML Document.
<title>Applet Test Page</title>
<h1>Applet Test Page</h1>
<applet
code="Applet 15. class"
width= 25...
giáo trình Java By Example phần 4 pot
... g.drawString(s, 50 , 50 );
s = "Family: " + family;
g.drawString(s, 50 , 65) ;
s = "Style: " + style;
g.drawString(s, 50 , 80);
s = "Size: " + size;
g.drawString(s, 50 , 95) ;
... Checkbox("The Adventures of Javaman", null, false);
checkbox2 =
new Checkbox(" ;Java by Example& quot;, null, false);
checkbox3 =
new Checkbox(" ;Jav...
giáo trình Java By Example phần 3 pot
... Controls
CONTENTS
Choice Menus
Example: Creating a Choice Menu❍
Choice Menu Methods❍
Example: Responding to Menu Events in an Applet❍
●
Scrolling Lists
Example: Creating a Single-Selection List❍
Example: Creating ... Clicking the button switches the manager to a new card.
Listing 22 .5 CardApplet .java: Using a CardLayout Manager.
import java. awt.*;
import java. applet.*;
public cl...
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