What is the difference between throw and throws?

"throw" is used to throw exceptions, "throws" is used in method declarations.

"throw" is used in method declarations, "throws" is used to throw exceptions.

Both are used to handle exceptions.

What are the 5 exception keywords in Java?

try, catch, throw, throws, finally.

try, check, throw, throws, verify.

catch, finally, for, new, this.

What is the difference between RuntimeException and IOException?

IOException is checked, RuntimeException is unchecked.

RuntimeException is checked, IOException is unchecked.

What is the difference between runtime exception and exception?

RuntimeException is unchecked, Exception is checked.

Runtime exceptions occur only during runtime.

RuntimeException is a subtype of Exception.

Which is better: try-catch or throws?

try-catch for handling, throws for declaration.

try-catch for declaration, throws for handling.

What is HttpException vs IOException?

IOException relates to networking, HttpException to input/output.

HttpException is checked, IOException is unchecked.

HttpException is unchecked, IOException is checked.

What is the ClassNotFoundException in Java?

Exception for missing class at runtime.

Error due to invalid class name.

Checked exception for missing imports.

Unchecked exception for compiler issues.

What is error in Java?

Severe issues like memory exhaustion.

How to avoid exceptions in Java?

Validate inputs, handle exceptions.

Can we throw multiple exceptions in Java?

Yes, by separating with a comma.

Yes, using "multi-throw" keyword.

What is difference between try catch and throws?

try-catch handles, throws declares.

try-catch declares, throws handles.

try-catch and throws are identical.

try-catch and throws are unrelated.

What is the difference between exception and error?

Exceptions are recoverable, errors are severe.

Exceptions are compile-time, errors are runtime.

Exceptions are unchecked, errors are checked.

Exceptions are syntax-related, errors are logic-related.

Can we handle errors in Java?

No, errors are severe and not meant to be handled.

Yes, using conditional statements.

How to avoid exception in Java?

Proper input validation and coding practices.

Which is better try catch or throws?

try-catch for handling, throws for declaration.

throws for handling, try-catch for declaration.

Checked and unchecked exception

Authored by ANIL KUMAR

Computers

Professional Development

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38 questions

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are checked and unchecked exceptions in Java?

Required and unchecked handling.

Optional and handled exceptions.

Handled and required exceptions.

Required and optional handling.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the examples of checked and unchecked exceptions?

RuntimeException, IOException.

ArrayIndexOutOfBoundsException, NullPointerException.

IOException, ClassNotFoundException.

NullPointerException, ArithmeticException.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which Java exceptions are unchecked?

IOException.

ClassNotFoundException.

RuntimeException.

SQLException.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the 4 checked exceptions in Java?

NumberFormatException, NullPointerException, ArrayIndexOutOfBoundsException, ArithmeticException.

FileNotFoundException, ClassNotFoundException, InterruptedException, SQLException.

RuntimeException, IndexOutOfBoundsException, IllegalArgumentException, ConcurrentModificationException.

IOException, SQLException, ClassNotFoundException, InterruptedException.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the difference between checked and unchecked exception?

Checked at runtime, unchecked at compile time.

Unchecked at runtime, checked at compile time.

Checked at runtime and compile time.

Unchecked at runtime and compile time.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Is NullPointerException checked or unchecked?

Checked.

Unchecked.

Both.

None.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the three unchecked exceptions?

ClassNotFoundException, NullPointerException, IOException.

IllegalArgumentException, ArrayIndexOutOfBoundsException, NullPointerException.

NullPointerException, InterruptedException, NumberFormatException.

UnsupportedOperationException, ClassCastException, IOException.

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Checked and unchecked exception

What are checked and unchecked exceptions in Java?

What are the examples of checked and unchecked exceptions?

Which Java exceptions are unchecked?

What are the 4 checked exceptions in Java?

What is the difference between checked and unchecked exception?

Is NullPointerException checked or unchecked?

What are the three unchecked exceptions?

Which one is an unchecked exception?

What is the difference between throw and throws?

What is an IOException?

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