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How to create a banner using Applet in Java
Problem Description
How to create a banner using Applet?
Solution
Following example demonstrates how to play a sound using an applet image using Thread class. It also uses drawRect(), fillRect(), drawString() methods of Graphics class.
import java.awt.*; import java.applet.*; public class SampleBanner extends Applet implements Runnable { String str = "This is a simple Banner "; Thread t ; boolean b; public void init() { setBackground(Color.gray); setForeground(Color.yellow); } public void start() { t = new Thread(this); b = false; t.start(); } public void run () { char ch; for( ; ; ) { try { repaint(); Thread.sleep(250); ch = str.charAt(0); str = str.substring(1, str.length()); str = str + ch; } catch(InterruptedException e) {} } } public void paint(Graphics g) { g.drawRect(1,1,300,150); g.setColor(Color.yellow); g.fillRect(1,1,300,150); g.setColor(Color.red); g.drawString(str, 1, 150); } }
Result
The above code sample will produce the following result in a java enabled web browser.
View in Browser.
The following is an another sample example to create a banner using Applet.
import java.awt.*; import java.applet.*; public class NewApplet extends Applet implements Runnable { String msg = " It is a moving Banner. "; char cha; boolean stopFlag = true; Thread t = null; public void start() { t = new Thread(this); stopFlag = false; t.start(); } public void run() { for(;;) { try { repaint(); Thread.sleep(250); cha = msg.charAt(0); msg = msg.substring(1,msg.length()); msg = msg + cha; if(stopFlag) break; } catch(InterruptedException e) {} } } public void stop(){ stopFlag = true; t = null; } public void paint(Graphics g) { g.drawString(msg,60,30); } }
java_applets.htm
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