0
When Exception has been thrown by the target of an invocation?
Wiki User
∙ 14y ago
Exception has been thrown by the target of an invocation
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
When do you say an exception is handled?
There is no catch block that names either the class of exception that has been thrown or a class of exception that is a parent class of the one that has been thrown, then the exception is considered to be unhandled, in such condition the execution leaves the method directly as if no try has been executed
What does uncaught exception javalang error mean in a Blackberry curve 9320 and how do you fix it?
The solution to this problem is simple... You should go to Options > Advance Options (Applications) > BB Key > Edit Permisions > Set to default. The error will go away, BUT, you will lose your previous app permissionss and they won't have access to specific functions.
Explain about exception handling with multiple exception?
Exception handling in Java is done through a try-catch-finally block. The "try" block of code is where you put the code which may throw an exception. The "catch" block of code is where you put the code which will execute after an exception is thrown in the try block. This is often used to display an error message, or to mitigate problems caused by the exception. The "finally" block is where you put code that you want to execute after the try and catch blocks have been processed. // example code for catching exception while reading from a file try { // this line of code can throw a FileNotFoundException FileReader in = new FileReader("myfile.txt"); // this line of code can throw an IOException in.read(); } catch(FileNotFoundException ex) { // catch first exception type System.err.println("Cannot find myfile.txt!"); } catch(IOException ex) { //catch second exception type System.err.println("Cannot read from myfile.txt!"); } finally { // no matter what we want to close the file, so do it here // however, this line can also cause an exception, so we need to catch that, too try { in.close(); catch(IOException ex) { // not much we can do about an exception that occurs here } }
Why do you clone humans and why?
No human has yet been cloned. With the exception of identical twins.
What is finally statement in java?
Although try and catch provide a great way to trap and handle exceptions, we are left with the problem of how to clean up if an exception occurs. Because execution transfers out of the try block as soon as an exception is thrown, we can't put our cleanup code at the bottom of the try block and expect it to be executed if an exception occurs. Exception handlers are a poor place to clean up after the code in the try block because each handler then requires its own copy of the cleanup code. If, for example, you opened a database connection somewhere in the guarded region, each exception handler would have to release the connection. That would make it too easy to forget to do cleanup, and also lead to a lot of redundant code. If you forget to close the connection in cases where an exception occurs, you will be left with orphan connections which can eventually crash your database. To address this problem, Java offers the finally block. A finally block encloses code that is always executed at some point after the try block, whether an exception was thrown or not. Even if there is a return statement in the try block, the finally block executes right after the return statement is encountered, and before the return executes! This is the right place to close your files, release your db connections, and perform any other cleanup your code requires. If the try block executes with no exceptions, the finally block is executed immediately after the try block completes. If there was an exception thrown, the finally block executes immediately after the proper catch block completes. Let's look at another pseudocode example: 1: try { 2: // This is the first line of the "guarded region". 3: } 4: catch(DatabaseDownException) { 5: // Put code here that handles this exception 6: } 7: catch(SomeOtherException) { 8: // Put code here that handles this exception 9: } 10: finally { 11: // Put code here to release any resource we 12: // allocated in the try clause. 13: } 14: 15: // More code here As before, execution starts at the first line of the try block, line 2. If there are no exceptions thrown in the try block, execution transfers to line 11, the first line of the finally block. On the other hand, if a SomeOtherException is thrown while the code in the try block is executing, execution transfers to the first line of that exception handler, line 8 in the catch clause. After all the code in the catch clause is executed, the program moves to line 11, the first line of the finally clause. To summarize - THE FINALLY BLOCK WILL EXECUTE ALWAYS. There is actually a catch here about the finally block executing always, but I will leave you to ponder over it for sometime. We will look at it a little later.
When do you say an exception is handled?
There is no catch block that names either the class of exception that has been thrown or a class of exception that is a parent class of the one that has been thrown, then the exception is considered to be unhandled, in such condition the execution leaves the method directly as if no try has been executed
Define exception and list some of the common type of exception?
An Exception is a Scenario where the system is working in a way that you dont want it to or rather did not expect it to work. Some of the common exceptions you may encounter are: 1. ArrayIndexOutOfBoundsException - Thrown when attempting to access an array with an invalid index value (either negative or beyond the length of the array). 2. ClassCastException - Thrown when attempting to cast a reference variable to a type that fails the IS-A test. 3. IllegalArgumentException - Thrown when a method receives an argument formatted differently than the method expects. 4. IllegalStateException - Thrown when the state of the environment doesn't match the operation being attempted, e.g., using a Scanner that's been closed. 5. NullPointerException - Thrown when attempting to access an object with a reference variable whose current value is null. 6. NumberFormatException - Thrown when a method that converts a String to a number receives a String that it cannot convert. 7. AssertionError - Thrown when a statement's boolean test returns false. 8. ExceptionInInitializerError - Thrown when attempting to initialize a static variable or an initialization block. 9. StackOverflowError - Typically thrown when a method recurses too deeply. (Each invocation is added to the stack.) 10. NoClassDefFoundError - Thrown when the JVM can't find a class it needs, because of a command-line error, a classpath issue, or a missing .class file.
Is it correct to say the stones i've been thrown without an AT the stones i've been thrown at?
It is neither correct to say " stones i've been thrown " nor "the stones i've been thrown at".
How many inaugural first pitches have been thrown by Presidents?
Including the 2008 season, there have been 48 Presidential 1st pitches thrown out.
What does uncaught exception javalang error mean in a Blackberry curve 9320 and how do you fix it?
The solution to this problem is simple... You should go to Options > Advance Options (Applications) > BB Key > Edit Permisions > Set to default. The error will go away, BUT, you will lose your previous app permissionss and they won't have access to specific functions.
What is the best way to analyze an object thrown into the air?
whenever an object is thrown in the air we must know the initial velocity with which the object has been thrown.
What planet of the solar system is exception?
Pluto has been made an exception and excluded from the solar planets..
In a football game What is the longest yards a football been thrown?
93 yards is the longest thrown yardage in history
What do you do when your pizza has been thrown away?
Buy another.
What forces will act on a baseball after its been thrown?
gravity
How many girls have been thrown in a pool?
once
What spell removes all other spells in Harry Potter?
It depends, 'Protego' can be used to block spells before they hit their target. But 'Finite Incantatem' removes the effects of MOST charms that have been cast. The exception to this is if they are particularly powerful.
