Sarah Haideri

Thanks Rob for the reply. Can you please change the code so that it does what you are suggesting?
Thanks a lot.

Why don't you reply here if you know?
Thanks.

I have an old applet which loads image. What can be done to increase the refresh rate? I know it contains some deprecated methods of Thread class. What can be done to stop using those methods?
Here is source code. Can someone update it to increase the refresh rate and get rid of the deprecated methods?
Thanks.
import java.awt.*; import java.applet.*; import java.net.*; // Variables: // Trace - trace control // URL - Url for image // Interval update interval public class JavaCam extends Applet implements Runnable { booleanboolean_Debug;// Debugging enabled/disabled Imageimage_WebcamImage;// Image from Webcam32 Threadthread_This;// Thread for refreshing image intint_Interval;// Interval between image refreshes ... public static void main(String args[]) { System.out.println("Webcam32's JavaCam: V1.1"); } public void trace(String message) { if (boolean_Debug) { System.out.println(message); } } public void destroy() { trace("Applet.destroy() called"); thread_This.stop(); } public void start() { trace("Start called"); thread_This.resume(); } public void stop() { trace("Stop called"); thread_This.suspend(); } public void run() { trace("run(): Thread started!"); while (true) { try { // Put the refresh thread to sleep for the supplied interval Thread.sleep(int_Interval*1000); trace("Flushing image"); // Flush the image in the image buffer so we get a new one image_WebcamImage.flush(); // Track the image and wait till its loaded MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); // Repaint the image repaint(); } catch (Exception e) { trace("Caught:"+e.toString()); } } } public void init() { Stringstring_Url; URLurl_Webcam; intint_Port; boolean_Debug = false; if (getParameter("Trace") != null) { boolean_Debug = true; } trace("Init called"); string_Url = getParameter("URL"); if (string_Url == null) { showStatus("No URL for Webcam32 image supplied"); return; } try { int_Interval = Integer.parseInt(getParameter("Interval")); } catch (Exception e) { // Format exception ... default interval 30 int_Interval = 30; } trace("Refresh interval="+int_Interval); try { url_Webcam = new URL(string_Url); trace("Target URL="+url_Webcam.toString()); image_WebcamImage = getImage(url_Webcam); MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); } catch(Exception e) { trace("Image get exception:"+e.toString()); showStatus("Problem getting initial image: "+e.toString()); return; } /* int int_Width = image_WebcamImage.getWidth(this); int int_Height = image_WebcamImage.getHeight(this); trace("width="+int_Width+" height="+int_Height); resize(int_Width, int_Height); */ // Create and start the new thread initially suspended thread_This = new Thread(this); thread_This.suspend(); thread_This.start(); } public void paint(Graphics g) { trace("paint()"); if (image_WebcamImage != null) { g.drawImage(image_WebcamImage, 0,0, this); } } }

I have an old applet which loads image. What can be done to increase the refresh rate? I know it contains some deprecated methods of Thread class. What can be done to stop using those methods?
Here is source code. Can someone update it to increase the refresh rate and get rid of the deprecated methods?
Thanks.
import java.awt.*; import java.applet.*; import java.net.*; // Variables: // Trace - trace control // URL - Url for image // Interval update interval public class JavaCam extends Applet implements Runnable { booleanboolean_Debug;// Debugging enabled/disabled Imageimage_WebcamImage;// Image from Webcam32 Threadthread_This;// Thread for refreshing image intint_Interval;// Interval between image refreshes ... public static void main(String args[]) { System.out.println("Webcam32's JavaCam: V1.1"); } public void trace(String message) { if (boolean_Debug) { System.out.println(message); } } public void destroy() { trace("Applet.destroy() called"); thread_This.stop(); } public void start() { trace("Start called"); thread_This.resume(); } public void stop() { trace("Stop called"); thread_This.suspend(); } public void run() { trace("run(): Thread started!"); while (true) { try { // Put the refresh thread to sleep for the supplied interval Thread.sleep(int_Interval*1000); trace("Flushing image"); // Flush the image in the image buffer so we get a new one image_WebcamImage.flush(); // Track the image and wait till its loaded MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); // Repaint the image repaint(); } catch (Exception e) { trace("Caught:"+e.toString()); } } } public void init() { Stringstring_Url; URLurl_Webcam; intint_Port; boolean_Debug = false; if (getParameter("Trace") != null) { boolean_Debug = true; } trace("Init called"); string_Url = getParameter("URL"); if (string_Url == null) { showStatus("No URL for Webcam32 image supplied"); return; } try { int_Interval = Integer.parseInt(getParameter("Interval")); } catch (Exception e) { // Format exception ... default interval 30 int_Interval = 30; } trace("Refresh interval="+int_Interval); try { url_Webcam = new URL(string_Url); trace("Target URL="+url_Webcam.toString()); image_WebcamImage = getImage(url_Webcam); MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); } catch(Exception e) { trace("Image get exception:"+e.toString()); showStatus("Problem getting initial image: "+e.toString()); return; } /* int int_Width = image_WebcamImage.getWidth(this); int int_Height = image_WebcamImage.getHeight(this); trace("width="+int_Width+" height="+int_Height); resize(int_Width, int_Height); */ // Create and start the new thread initially suspended thread_This = new Thread(this); thread_This.suspend(); thread_This.start(); } public void paint(Graphics g) { trace("paint()"); if (image_WebcamImage != null) { g.drawImage(image_WebcamImage, 0,0, this); } } }

I have an old applet which loads image. What can be done to increase the refresh rate? I know it contains some deprecated methods of Thread class. What can be done to stop using those methods?
Here is source code. Can someone update it to increase the refresh rate and get rid of the deprecated methods?
Thanks.
import java.awt.*; import java.applet.*; import java.net.*; // Variables: // Trace - trace control // URL - Url for image // Interval update interval public class JavaCam extends Applet implements Runnable { booleanboolean_Debug;// Debugging enabled/disabled Imageimage_WebcamImage;// Image from Webcam32 Threadthread_This;// Thread for refreshing image intint_Interval;// Interval between image refreshes ... public static void main(String args[]) { System.out.println("Webcam32's JavaCam: V1.1"); } public void trace(String message) { if (boolean_Debug) { System.out.println(message); } } public void destroy() { trace("Applet.destroy() called"); thread_This.stop(); } public void start() { trace("Start called"); thread_This.resume(); } public void stop() { trace("Stop called"); thread_This.suspend(); } public void run() { trace("run(): Thread started!"); while (true) { try { // Put the refresh thread to sleep for the supplied interval Thread.sleep(int_Interval*1000); trace("Flushing image"); // Flush the image in the image buffer so we get a new one image_WebcamImage.flush(); // Track the image and wait till its loaded MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); // Repaint the image repaint(); } catch (Exception e) { trace("Caught:"+e.toString()); } } } public void init() { Stringstring_Url; URLurl_Webcam; intint_Port; boolean_Debug = false; if (getParameter("Trace") != null) { boolean_Debug = true; } trace("Init called"); string_Url = getParameter("URL"); if (string_Url == null) { showStatus("No URL for Webcam32 image supplied"); return; } try { int_Interval = Integer.parseInt(getParameter("Interval")); } catch (Exception e) { // Format exception ... default interval 30 int_Interval = 30; } trace("Refresh interval="+int_Interval); try { url_Webcam = new URL(string_Url); trace("Target URL="+url_Webcam.toString()); image_WebcamImage = getImage(url_Webcam); MediaTracker mediaTracker_track = new MediaTracker(this); mediaTracker_track.addImage(image_WebcamImage, 1); mediaTracker_track.waitForID(1); } catch(Exception e) { trace("Image get exception:"+e.toString()); showStatus("Problem getting initial image: "+e.toString()); return; } /* int int_Width = image_WebcamImage.getWidth(this); int int_Height = image_WebcamImage.getHeight(this); trace("width="+int_Width+" height="+int_Height); resize(int_Width, int_Height); */ // Create and start the new thread initially suspended thread_This = new Thread(this); thread_This.suspend(); thread_This.start(); } public void paint(Graphics g) { trace("paint()"); if (image_WebcamImage != null) { g.drawImage(image_WebcamImage, 0,0, this); } } }

I'm trying to create a class First which contains at least 10 sayings as static String data members.It also contains getFortune() method which picks and returns one of the sayings at random.This is the program I'm writing:

import java.util.Random; import java.io.*; public class First { Random randGen = new Random(); static String myString[] ; public static void main(String args[]) { getFortune(); } public static String getFortune() {myString= new String[10]; myString[0]="pithy saying #1"; myString[1]="pithy saying #2"; myString[2]="pithy saying #3"; myString[3]="pithy saying #4"; myString[4]="pithy saying #5"; myString[5]="pithy saying #6"; myString[6]="pithy saying #7"; myString[7]="pithy saying #8"; myString[8]="pithy saying #9"; myString[9]="pithy saying #10"; int a;a = (int) (randGen.nextFloat()*10.0); return myString[a]; }
This program gives me an error that you cannot access non-static variable randGen from static method. what should I do?
Can someone help?
Thanks.

The program which I've written is:
import java.util.Random; import java.io.*; public class Fortune { Random randGen = new Random(); static String myString[] ; public static void main(String args[]) { getFortune(); } public static String getFortune() { myString= new String[10]; myString[0]="pithy saying #1"; myString[1]="pithy saying #2"; myString[2]="pithy saying #3"; myString[3]="pithy saying #4"; myString[4]="pithy saying #5"; myString[5]="pithy saying #6"; myString[6]="pithy saying #7"; myString[7]="pithy saying #8"; myString[8]="pithy saying #9"; myString[9]="pithy saying #10"; int a; a = (int) (randGen.nextFloat()*10.0); return myString[a]; }
Am I writing it correctly? This program gives me an error.
Thanks for your help.

I'm trying to create a class First which contains at least 10 sayings as static String data members.It also contains getFortune() method which picks and returns one of the sayings at random.
Can someone help me write the code?
Thanks.

Hi everybody!!
I want you all to guide me which book should I use to learn XML. I'm a beginner in learning XML and I want to know about a good book which is easy to understand and teach me all the important aspects related to XML. I already know HTML, javascript & java.
Thanks in advance.

Thank you all for your wishes!!
Thanks.

Hi All!!
Yesterday I took the exam and I passed. Many many thanks to God and to all of you who were so quick to respond. I used to read all posts. I used to get happy for those who passed with good marks. I used to get scared reading the posts saying " I blew it". Now I feel very relieved and happy.
Thanks again to all Javaranchers.

The answer will be 12 !!

Consider the following program...
public class TestClass implements Runnable { int x = 0, y = 0; public void run() { while(true) { x++; y++; System.out.println(" x = "+x+" , y = "+y); } } public static void main(String[] args) { TestClass tc = new TestClass(); new Thread(tc).start(); new Thread(tc).start(); } }
This question's right option is nothing can be said about the output.

Question ID :988383703406
Consider the following code:
public class Test extends Thread { static int x, y; public synchronized void run(){ for(; [img]http://www.javaranch.com/ubb/wink.gif[/img]{ x++; y++; System.out.println(x+" "+y);} } public static void main(String[] args) { new Test().start(); new Test().start(); } }
What will the above code print?
This question's right option is it'll keep printing the x and y values incrementing one on each line.

Consider the following code:
public class Test extends Thread { static Object obj = new Object(); static int x, y; public void run() { synchronized(obj) { for(; [img]http://www.javaranch.com/ubb/wink.gif[/img] { x++; y++; System.out.println(x+" "+y); } } } public static void main(String[] args) { new Test().start(); new Test().start(); } }
This code's right option says it'll keep printing x and y values incrementing 1 on each line.
I'm kind of confused. Can anyone clear my doubts regarding threads?

Q.50.Which of the following classes can be used to specify the character encoding for input?Select one correct answer. FileReader FileInputReader FileOutputWriter FileInputStream RandomAccessFile
The answer given is FileInputReader. Is there a class with this name? I think it should be InputStreamReader.
Thanks.

Hi everyone!!
I just wanted to know do we get true/false type of questions in real exam?
And also do we get such type of questions as "Which of the following statements are true?"
Thanks.