I don't know why my sound is not working

all of a sudden my sound is not working

@Katmar,
What is the product number?
Go to device manager and expand the sound category. Is the sound card listed with an error? If it has an error, open the device and let me know the status message.
If it is a recent issue, have you tried a system restore?
↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

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I keep getting "Unable to connect" for my firefox. It was working yesterday and I turned my computer off. I can get to the web using internet explorer 9. I don't know why my firefox is not working. Everything else is working.

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.com/kb/Server+not+found
*https://support.mozilla.com/kb/Firewalls

I don't know why my screensaver does not work...

I Set up my screensaver through system preferences, but it doesn't go to screensaver mode on my laptop after the time it should begin..

Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Press and hold Shift and left-click the Reload button.
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (MAC)
Clear the cache and the cookies from sites that cause problems.
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"Remove Cookies" from sites causing problems:
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HeLLO I AM USING AN IPHONE 5 From Last few days I DON'T KNOW WHAT HAPEND TO MY SET ITS DISTURBING ME A LOT DON'T KNOW WHY BUT I AM NOT ABLE TO UPGRADE ANY APPS BECAUSE WHEN I AM TRYING TO UPGRADE OR DOWNLOAD ANY APP THROUGH WIFI ND 3G BOTH AFTER SOMETIMES IT STOPS DOWNLOADING AND SHows THAT "UNABLE TO DOWNLOAD THIS APP" IT'S SHOWING THIS MESSAGE IN EVERY APP AND ALSO AT ITS DISTURBING ME AT THE TIME OF WATCHING ANY VIDEOS TOO. BECAUSE WHEN I AM TRYING TO WATCH ANY VIDEO IN YOUTUBE IT'S DISTURBING VIDEOS ARE NOT PLAYING ND SOUNDS ARE NOT COMING PROPERLY ND THE IMAGE QUALITY ALSO BECOMES POOR AND THE VIDEO STOPS AFTER SOME TIMES THIS PROBLEM IS HAPPENING AT ALL THE VIDEO ND IT'S HARASSING A LOT. THE SAME PROBLEM IS ALSO HAPPENING TO MY BROTHER'S PHONE TOO.. REQUEST TO APPLE PLEASE ANALYSE AND FIXED THE PROBLEM AS SOON AS POSSIBLE OR ELSE MAYB I NEED TO STOP USING APPLE PRODUCTS. CAUSE IT'S HARASSING MY DAILY LIFE A LOT....

These are user to user forums. You ARE NOT addressing Apple by posting here.
Also, why are you YELLING at us?? Stop using ALL CAPS.
What steps have you done to try and fix the problem?

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Hi Someone Know why my charger is not working properly but always it was been working good but now when conect my iphone (3gs) appears a golden triangle saying :Charging is not Supported with this accessory. Please I Need Some Help Here. Thanks =D

sounds like the cable or the iphone connector are somehow damaged

I don't know why my code isn't working, Can you see what is wrong?

I'm putting together a program that reads input from a text file and then decides what type of input it is (male or female) and then calculates the final sum for both.
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m 2.4
f 3.2
m 3.7
m 4.0
f 2.9
f 1.8
f 3.8
m 1.7
m 3.4
f 2.6
m 2.8
m 1.7
f 3.7
m 3.9
f 4.0
f 3.6
m 2.3
f 2.9
m 3.0
m 2.7now here is my code:
import java.io.*;
import java.util.*;
public class gradecalc {
     * @param args the command line arguments
    public static void main(String[] args)
                            throws FileNotFoundException{
        // TODO code application logic here
double sumMale=0;
int numMale=0;
double sumFemale=0;
int numFemale=0;
char gender;
double gpa;
     Scanner inFile= new Scanner(new FileReader("gpa.txt"));
        PrintWriter outFile= new PrintWriter("gpaResult.txt");
while (inFile.hasNext())
    gender= inFile.next().charAt(0);
    gpa= inFile.nextDouble();
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        case 'F':
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        default:
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outFile.print("Sum of male students GPAs: " + sumMale);
outFile.print("Sum of female students GPAs: " + sumFemale);
outFile.close();
}and this is the error message I get when I build and then try to run the program:
init:
deps-jar:
compile:
run:
Exception in thread "main" java.util.NoSuchElementException
        at java.util.Scanner.throwFor(Scanner.java:838)
        at java.util.Scanner.next(Scanner.java:1461)
        at java.util.Scanner.nextDouble(Scanner.java:2387)
        at gradecalc.main(gradecalc.java:32)
Java Result: 1
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I actually figured it out. I think some of you programmers out there would be proud of me if you saw this completed code. This forum has really helped me out, but I still make some stupid mistakes. Like the one I realized I made on this program seconds after I made this pose. I realized that I had an unknown character at the end of my input document, which you can't see in my post because I must have not copied and pasted that part. I would delete this post, but don't know how.

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Hi,
The first thing that I would make sure is that you have the correct device number in the example you are trying to run. That is, the default for this program is dev1, and if this is not the same as in MAX then obviously your program won't run. So, make sure that these are the same, and let me know either way what happens.
George

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Hi Vittorio,
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Meanwhile, try:
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Invalid serial number error
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@Katmar,
What is the product number?
Go to device manager and expand the sound category. Is the sound card listed with an error? If it has an error, open the device and let me know the status message.
If it is a recent issue, have you tried a system restore?
↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

Why does Sound Check not work?

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I don't understand why my code is not working please help!

import(flash.events.MouseEvent);{
stop();
button1.addEventListener(MouseEvent.CLICK,showpic1);
button1.addEventListener(MouseEvent.CLICK,showpic2);
button1.addEventListener(MouseEvent.CLICK,showpic3);
button1.addEventListener(MouseEvent.CLICK,showpic4);
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function showpic2(Event:MouseEvent);{
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I don't know why my sound is not working

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