Which of these keywords is used to create an exception object which can then be thrown
Article 6 of 6 Part of: Troubleshooting common Java errors and exceptions Just how well do you know exception handling in Java? These 10 tough multiple-choice questions on checked and unchecked exceptions will test your error handling mettle.Every time software runs, there's a potential for an error to occur that could grind the application to a halt. The Java programming language provides a number of error-handling constructs that enable the developer to recover from and handle problems that occur at runtime. Some of those constructs include:
Think you've got a solid grasp on how to develop effective, error-proof Java code? Take this tough, multiple-choice, Java exception handling quiz and find out.
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Part of: Troubleshooting common Java errors and exceptions Article 6 of 6 Before you can catch an exception, some code somewhere must throw one. Any code can throw an exception: your code, code from a package written by someone else such as the packages that come with the Java platform, or the Java runtime environment. Regardless of what throws the exception, it's always thrown with the As you have probably noticed, the Java platform provides numerous exception classes. All the classes are descendants of the
You can also create your own exception classes to represent problems that can occur within the classes you write. In fact, if you are a package developer, you might have to create your own set of exception classes to allow users to differentiate an error that can occur in your package from errors that occur in the Java platform or other packages. You can also create chained exceptions. For more information, see the Chained Exceptions section. The throw StatementAll methods use the throw someThrowableObject; Let's look at the public Object pop() { Object obj; if (size == 0) { throw new EmptyStackException(); } obj = objectAt(size - 1); setObjectAt(size - 1, null); size--; return obj; } The Note that the declaration of the Throwable Class and Its SubclassesThe objects that inherit from the The Throwable class. Error ClassWhen a dynamic linking failure or other hard failure in the Java virtual machine occurs, the virtual machine throws an Exception ClassMost programs throw and catch objects that derive from the The Java platform defines the many descendants of the One Which keyword is used to generate an exception?The correct answer is option C because: throw keyword is used to throw an exception explicitly from a method or any block of program code.
Which keyword is used to throw an exception in Java?The Java throw keyword is used to throw an exception explicitly. We specify the exception object which is to be thrown.
Which is used to throw an exception?All methods use the throw statement to throw an exception. The throw statement requires a single argument: a throwable object. Throwable objects are instances of any subclass of the Throwable class. Here's an example of a throw statement.
What is the exception thrown?The object, called an exception object, contains information about the error, including its type and the state of the program when the error occurred. Creating an exception object and handing it to the runtime system is called throwing an exception.
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