Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>No. the <code>throws BlahException</code> clause tells the compiler that your function <em>might</em> throw a BlahException and that this should be caught by the caller. For example:</p> <pre><code>class ExceptionThrower { void someFunction() { for(int i =0; i&lt;10;i++) if(i==4) throw new Exception(); } public static void main(String args[]) { new ExceptionThrower().someFunction(); } } </code></pre> <p>This program will not compile, because it can throw an exception of type <code>Exception</code>, and the exception has neither been caught nor declared to be thrown. </p> <p>However, the following code will compile fine.</p> <pre><code>class ExceptionThrower { void someFunction() throws Exception { for(int i =0; i&lt;10;i++) if(i==4) throw new Exception(); } public static void main(String args[]) { try { new ExceptionThrower().someFunction(); } catch(Exception e) { e.printStackTrace(); } } } </code></pre> <p>Essentially, you are telling the compiler that this function <em>might</em> throw an Exception that is not handled inside the function itself. These types of exceptions are all subclasses of <code>java.lang.Exception</code> and are called <em>checked exceptions</em>. Other exceptions that indicate a catastrophic failure caused by bugs in the program itself, rather than by a condition such as malformed input are subclasses of <code>java.lang.RuntimeException</code> and these are called <em>unchecked exceptions</em>. In short, unchecked exceptions can be thrown without a <code>throws</code> clause in the method signature, while any checked exceptions must be indicated there.</p> <p>For a discussion of checked vs. unchecked exceptions see <a href="http://www.javapractices.com/topic/TopicAction.do?Id=129" rel="noreferrer">http://www.javapractices.com/topic/TopicAction.do?Id=129</a></p>
    singulars
    1. This table or related slice is empty.
    1. POThe throws keyword for exceptions in Java
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USChinmay Kanchi
    1. USChinmay Kanchi
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COthat is not true for unchecked exceptions. They can be declared in the method signature for documentation reasons, but don't need to be caught by clients.
      singulars
      1. PO
      1. USmanuel aldana
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload