Exception OrderException is never thrown in body of corresponding try state

Currently, I have a problem with a throwing an exception that I created. No matter what I try, it continues to give me this error. My code is below and I cannot figure out what I am doing wrong. Any suggestions??
public class OrderException extends Exception
     public OrderException(String s)
          super(s);
public class ExceptionOrder extends JFrame implements ActionListener
//my code creates items in JFrame
     public ExceptionOrder()
          //creates JFrame
     public class Order
          String itemNumber = new String();
          int itemNum;
     public Order(String itn, int itnum) throws OrderException
               itemNumber = itn;
               itemNum = itnum;
               //itemQuantity = itq;
               if((itnum <= 111) || (itnum >= 999)) throw(new OrderException(itn));
     public void actionPerformed(ActionEvent e)
          int numItem;
          int itemPrice;
          int itemQuantity;
          itemPrice = 1;
          try
          numItem = Integer.parseInt(item.getText());
          itemQuantity = Integer.parseInt(quantity.getText());
          itemPrice = itemQuantity * 2;
          price.setText(String.valueOf(itemPrice));
          catch(OrderException e2)
          //DOES NOT LIKE OrderException
          //says we did not throw OrderException in try statement
          //when run with a JAVA Exception, like NumberFormatException
          //program runs
               System.err.println("Invalid Item Number or Quantity");
               //itemPrice = itemQuantity * 2;
any thoughts/suggestions??

I'm not sure what you are asking. Can you please
eloborate? I have a class named Order that I am
trying to throw my exception if the itNum is <=111 or
=999. I'm not sure what you mean...
Throwing an exception is a property of a function or a constructor, not of a class. So if you don't use the constructor of the class Order in your try-statement no OrderException can be thrown.

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Netscape.javascript.JSException is never thrown in body of corresponding tr

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This code has not been edited in two years, but has
been recompiled numerous times since then (until
today) without any compiler messages pertaining to
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GetWindow() function can throw a JSException. Have you changed compilers recently?
Have you tried compiling a brand new tiny test program in a different directory, with an explicit -classpath arg that contains only that relevant jar file, and no other classes in the directory?
Have you tried extracting the class file from the jar, running it through a decompiler, and seeing what it says about the exception?
If I
remove the try/catch block and there is a problem
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page hosting my applet there would obviously be an
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Exception not being thrown in try statement

I am trying to write a small program to handle exceptions. However, the program will not compile because it is giving me an error saying the exception InvalidDocumentCodeException will never be thrown in body of coresponding try statement. Here are the two programs:
public class InvalidDocumentCodeException extends Exception {
InvalidDocumentCodeException (String message) {
super(message);
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import java.util.Scanner;
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// Creates an exception object and possibly throws it.
public static void main (String[] args) {
char designation;
String input = null;
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input = scan.nextLine();
try {
designation = input.charAt(0);
if(designation == 'U')
valid++;
else if(designation == 'C')
valid++;
else if(designation == 'P')
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valid++;
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kenporic wrote:
Forgive me, This is the first time I have used this sight and I should have been more precise. Thanks for all the help, but this is an excercise in how to handle exceptions in Java. One way is to "throw" the exception to another class to be handled. The other is to handle the exception within the running class. The throws program That I have works. The problem that I am having is handling the exception within the class without coding the "throws" statement. I am supposed to use the try-catch method in doing this. In the example I was given to follow, the code did not specifically throw the exception. If the input was not handled in the processing code then the catch statement is supposed to call to the exception class somehow?Okay, there are two families of exceptions--checked and unchecked.
Checked: These are for things that are not part of the "happy path" of your code, but that your code may reasonably be expected to deal with. They're not necessarily signs of a bug in your code, nor do they indicate a problem in the JVM that's beyond your control. They're for things like when a file you're looking for doesn't exist (so maybe you handle it by asking the user to pick a different file), or a network connection being lost (so maybe you handle it by waiting a few seconds and trying again).
When a checked exception occurs, since it's an expected and recoverable occurrence, you're expected to deal with it. So, when one of these exceptions can occur in your method, your method is required to either a) handle it (with catch) or b) let the caller know that HE might be asked to deal with it.
We must either handle it:
void doFileStuff(String path) {
try {
    do file stuff
catch (IOException exc) {
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}Or let our caller know that he's going to have to handle it (or pass it on to his own caller):
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Unchecked: These are things that are either bugs in your code (like a NullPointerException) or serious problems with the JVM that are beyond our control (like OutOfMemoryEror). These can occur anywhere, and it's not generally our code's job or our caller's job to deal with them, so they don't need to be caught or declared like checked exceptions do. You can catch them, and there are some places where it's appropriate to do so, but leave that aside for now.
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Now, when you do
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If SomeException is a checked exception, the compiler is able to tell whether your claim that you might throw it is true. Since it's checked, every method that might throw it must declare it. So the compiler can look at all the methods you call and see if they throw SomeException. If none of them do, and you don't explicitly put throw new SomeException(...); in your foo() method, then the compiler can be absolutely sure that there's no way foo() will throw SomeException. So it won't let you claim to throw it.
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Can you show us the full error?
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Vladimir wrote:
I try to update my code from weblogic4.0 to weblogic5.1 and I recieve error: IMidtier_WLStub.java: Exception java.lang.NoSuchMethodException never thrown in the body corresponding try statement } catch{java.lang.NoSuchMethodException}. Could you help me to figure out why I start getting this method? Thank you. Vladimir.

This exception is never thrown from the try statement body

try {
               SimpleFileReader.openFileForReading("fileName.text");
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Thanks

It actually does if the file it's opening is not really a text file, or if it's read-protected. Or is that where I'm going wrong? I'm just trying to open the file's name(already in the field) and know that it is .text or will return the error.
Edited by: meme_kun_345k on Jan 15, 2008 7:18 PM

Exception: java.lang.NoClassDefFoundError thrown from the UncaughtException

Exception in thread "main"
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I don't have any idea to offer on what the problem is. However, here are some suggestions:
Perhaps you can provide an example of your code and/or a more through description of what it does so someone might see something wrong with the code.
I assume you print out the entire stack trace using somthing like this, so you can get the entire stack trace:
} catch (Exception e) {
e.printStackTrace();
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System.out.println( e.getMessage());
You can also consider peppering your code with System.out.println() statements (or write to the log file) to get a better understanding of whats going on and where it crashes.
What is jgps.RTI.jar? Is that a jar file you created or a vendor jar file? If its a vendor jar file, you might research their web site on how to use it.

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Exception OrderException is never thrown in body of corresponding try state

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