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Which of these classes are the direct subclasses of the Throwable class?
- a)Runtime Exception and Error class
- b)Exception and Virtual Machine Error class
- c)Error and Exception class
- d)IO Exception and Virtual Machine Error class
- e)None of these
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of these classes are the direct subclasses of the Throwable cla...
Direct Subclasses of the Throwable class
The Throwable class in Java is the superclass of all errors and exceptions. It serves as the base class for all exceptions that can be thrown in a Java program. In Java, there are several classes that directly subclass the Throwable class. These classes include:
1. Error class: The Error class is a subclass of the Throwable class and represents serious errors that are beyond the control of the application. These errors are often caused by the environment in which the application is running, such as system failures or resource limitations. Examples of errors include OutOfMemoryError, StackOverflowError, and AssertionError.
2. Exception class: The Exception class is another subclass of the Throwable class and represents exceptional conditions that can occur during the execution of a program. Exceptions are generally recoverable and can be caught and handled by the application. Examples of exceptions include IOException, NullPointerException, and IllegalArgumentException.
Incorrect Options:
a) Runtime Exception and Error class: This option is incorrect as Runtime Exception is a subclass of the Exception class, not the Throwable class.
b) Exception and Virtual Machine Error class: This option is incorrect as Virtual Machine Error class is not a direct subclass of the Throwable class.
d) IO Exception and Virtual Machine Error class: This option is incorrect as IOException is a subclass of the Exception class, not the Throwable class.
Correct Option:
c) Error and Exception class: This option is correct as both Error and Exception classes are direct subclasses of the Throwable class. Errors represent serious problems that cannot be recovered from, while exceptions represent recoverable problems that can be caught and handled.
Summary:
In summary, the direct subclasses of the Throwable class in Java are Error and Exception. Errors represent serious problems that cannot be recovered from, while exceptions represent recoverable problems that can be caught and handled.
The Throwable class in Java is the superclass of all errors and exceptions. It serves as the base class for all exceptions that can be thrown in a Java program. In Java, there are several classes that directly subclass the Throwable class. These classes include:
1. Error class: The Error class is a subclass of the Throwable class and represents serious errors that are beyond the control of the application. These errors are often caused by the environment in which the application is running, such as system failures or resource limitations. Examples of errors include OutOfMemoryError, StackOverflowError, and AssertionError.
2. Exception class: The Exception class is another subclass of the Throwable class and represents exceptional conditions that can occur during the execution of a program. Exceptions are generally recoverable and can be caught and handled by the application. Examples of exceptions include IOException, NullPointerException, and IllegalArgumentException.
Incorrect Options:
a) Runtime Exception and Error class: This option is incorrect as Runtime Exception is a subclass of the Exception class, not the Throwable class.
b) Exception and Virtual Machine Error class: This option is incorrect as Virtual Machine Error class is not a direct subclass of the Throwable class.
d) IO Exception and Virtual Machine Error class: This option is incorrect as IOException is a subclass of the Exception class, not the Throwable class.
Correct Option:
c) Error and Exception class: This option is correct as both Error and Exception classes are direct subclasses of the Throwable class. Errors represent serious problems that cannot be recovered from, while exceptions represent recoverable problems that can be caught and handled.
Summary:
In summary, the direct subclasses of the Throwable class in Java are Error and Exception. Errors represent serious problems that cannot be recovered from, while exceptions represent recoverable problems that can be caught and handled.
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Which of these classes are the direct subclasses of the Throwable cla...
According to the class hierarchy of Throwable class, the Error and Exception classes are the direct subclasses of the Throwable class, as shown below.
The Runtime Exception, IO Exception, and Virtual Machine Error classes are the sub-classes of the Exception and Error classes.
Hence, the correct option is (C).
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